Cleanup listing for WikiProject Chemistry as of May 22, 2018.

Of the 9305 articles in this project 2865 or 31% are marked for cleanup, with 4921 issues in total.

Listings: Alphabetic By category CSV History

... represents the current issue name. Issue names are abbreviated category names.

Contents

Changes since last update

New articles (14)

ArticleImportanceClass Issues
Alcohol Top B Citation with bare URL, Citation lacking title, Citation with accessdate and no URL
Covestro Low Stub CS1 errors: external links
Double layer forces Mid C Unsourced statements (July 2016)
Ion-exchange membranes Low Start Expansion needed (May 2018)
Katsuko Saruhashi Low C Reliable references lacking (May 2018)
List of JWH cannabinoids Low List Notability unclear (May 2018), Cleanup needed (May 2018, May 2018)
Lydia Makhubu Low Start Reliable references lacking (May 2018)
Morris S. Kharasch Unknown Unassessed Citation lacking title, Clarification needed (May 2017)
Osmolyte Low Stub Citation has redundant parameters
P123 Low Stub Orphaned (February 2009)
Phenol-Explorer Low Stub Notability unclear (May 2018), Reliable references lacking (May 2018)
Riemschneider thiocarbamate synthesis Low Stub CS1 errors: dates
Spin-forbidden reactions Mid Start Reliable references lacking (May 2018), Expansion needed (May 2018)
Thermodynamic equations Mid C Clarification needed (May 2018)

Resolved articles (9)

ArticleImportanceClass Issues
Atomic carbon MidStartArticles lacking in-text citations (September 2010)
Comparison of software for molecular mechanics modeling LowListPages using duplicate arguments in template calls
Idrialin LowStubOrphaned articles (February 2009)
John Isaiah Brauman LowStartBLP articles lacking sources (June 2013)
Organisation for the Prohibition of Chemical Weapons UnknownUnassessedVague or ambiguous time (April 2017), Articles with dead external links (March 2018), Articles with unsourced statements (April 2018)
Pluronic P-123 LowStubOrphaned articles (February 2009)
Pozzolanic activity LowStartArticles lacking in-text citations (September 2012), Articles to be merged (October 2016)
Pozzolanic reaction LowStartArticles to be merged (October 2016)
Sonochemistry LowStartWikipedia introduction cleanup (September 2017)

Clarity

Clarification needed (187)

ArticleImportanceClassCount OldestIssues
Acidic oxide High Stub2 March 2015... (March 2015), Merge needed (June 2017)
Activated carbon Mid C7 April 2009Unsourced statements (April 2009, May 2009, June 2017, July 2017, October 2017), Web citation with no URL, ... (June 2014)
Akabori amino-acid reaction Low Start1 June 2017... (June 2017)
Alkalinity Low C2 February 2015Disputed statements (February 2015), ... (February 2015)
Alkane Top B4 August 2014Expansion needed (August 2014, September 2017), Unsourced statements (December 2016), ... (December 2016)
Alloy steel High C1 January 2018... (January 2018)
Aluminium amalgam Low Start1 August 2017... (August 2017)
Amino acid Mid GA3 September 2010Page number citations needed (September 2010), Dead external links (July 2017), ... (August 2017)
Amorphous metal Low Start4 March 2011References needed (April 2012), Unsourced statements (March 2011, May 2012), ... (April 2012)
Apparent molar property Low Start1 November 2017... (November 2017)
Aryne Mid C1 October 2017... (October 2017)
Asphalt Low C3 June 2014Update needed (June 2014), Unsourced statements (January 2016), ... (June 2017)
Atmospheric methane Low C1 February 2016... (February 2016)
Atomic orbital Mid B2 November 2011Unsourced statements (January 2013), ... (November 2011)
Autoxidation Mid Start1 May 2016... (May 2016)
Avoided crossing Low C1 January 2017... (January 2017)
Ayhan Ulubelen Low Start7 May 2012Detailed references needed, Unsourced statements (July 2013), BLP articles lacking sources (May 2012), ... (May 2012, July 2013), Vague or ambiguous time (July 2013), Dead external links (October 2016)
Bifluoride Low Start3 April 2012Unsourced statements (April 2012, November 2016), ... (November 2016)
Bond order Mid Stub1 April 2018... (April 2018)
Bound state Low Start3 February 2015... (February 2015), Unsourced statements (November 2016), Disputed statements (November 2016)
Bufagin Low Start2 March 2014Unsourced statements (March 2014), ... (March 2014)
C. Ainsworth Mitchell Low Start2 July 2016... (July 2016), Reliable references lacking (October 2016)
Carbene High C1 March 2017... (March 2017)
Carbonate High Start1 January 2018... (January 2018)
Cement Low B1 October 2015... (October 2015)
Chemical ecology Low Stub8 March 2017Detailed references needed, Expert attention needed (March 2017), Unsourced statements (March 2017), Weasel-worded phrases (March 2017), Self-contradictory articles (March 2017), ... (March 2017), Reliable references lacking (March 2017)
Chemical formula High Start1 November 2012... (November 2012)
Chemical property Mid Stub2 August 2012... (August 2012), References needed (December 2017)
Chemoselectivity High Start1 October 2014... (October 2014)
Chlorine bomb Low Start1 December 2011... (December 2011)
Chlorofluorocarbon High B5 April 2010Unsourced statements (March 2011, March 2018), Disputed statements (April 2010), ... (June 2013), References needed (February 2015)
Chlorographene Low Start3 November 2012Introduction cleanup (November 2012), Context needed (November 2012), ... (May 2015)
Chromium hydride Low Start2 January 2016Unsourced statements (January 2016), ... (January 2016)
Chromogen Low Stub2 October 2015Sources lacking (October 2015), ... (December 2017)
Click chemistry Low C1 May 2012... (May 2012)
Coal gas Low C4 October 2007References needed (June 2009), Expansion needed (October 2007), ... (February 2014), Unsourced statements (April 2018)
Collision theory Mid C1 May 2018... (May 2018)
Colloid High B4 July 2009Unsourced statements (July 2009, June 2014), References needed (June 2014), ... (February 2017)
Colloidal gold Mid C3 December 2016Unsourced statements (December 2016), Reliable references lacking (August 2017), ... (April 2018)
Colored gold Mid C2 May 2011Unsourced statements (May 2011), ... (June 2017)
Conformational isomerism Mid Start2 July 2014... (July 2014), Disputed statements (July 2014)
Conical intersection Low Start1 October 2017... (October 2017)
Cryochemistry Mid Start5 November 2015Unsourced statements (November 2015), In-text citations lacking (November 2015), ... (November 2015), Vague or ambiguous time (November 2015), Dead external links (January 2018)
Curtin–Hammett principle Mid C1 October 2011... (October 2011)
Cuvette Low Start4 November 2017Cleanup needed (November 2017, November 2017), References needed (November 2017), ... (January 2018)
Cyclic compound High Start13 April 2015Expert attention needed (April 2015), Reliable references lacking (April 2015), Expansion needed (June 2015, April 2015), References needed (April 2015, June 2015), Unsourced statements (April 2015, June 2015), ... (April 2015), Page number citations needed (April 2015, June 2015), Factual verification needed (April 2015)
Cyclohexane conformation Mid C10 January 2008References needed (January 2008, May 2014), Unsourced statements (January 2008, May 2014, August 2011), ... (May 2014), Reliable references lacking (May 2014), Cleanup needed (May 2014, May 2014), Rewrite needed (May 2014)
Daniel Rutherford Mid Start2 September 2017Dead external links (September 2017), ... (November 2017)
Depsipeptide Low Stub3 June 2014Unsourced statements (June 2014), References needed (June 2014), ... (June 2014)
Detailed balance Mid B1 March 2015... (March 2015)
Diabatic Low C2 January 2011... (January 2011), Style editing needed (April 2013)
Diagonal relationship Mid Start2 February 2007References needed (February 2007), ... (July 2017)
Diesel fuel Mid Start6 September 2014Unsourced statements (September 2014, October 2014), ... (January 2017, April 2017, December 2017), Dead external links (September 2017)
Disilyne Low C5 December 2016Dead external links (December 2016, September 2017), Cleanup needed (June 2017, June 2017), ... (June 2017)
Dislocation Low C1 April 2016... (April 2016)
Dispersion (chemistry) Mid Start3 December 2013References needed (December 2013), ... (November 2014), Disputed statements (February 2018)
Dissociation constant High B3 July 2015Unsourced statements (June 2016, July 2015), ... (June 2016)
Disulfide Mid C3 November 2012Unsourced statements (November 2012), References needed (September 2015), ... (April 2016)
Effective molarity Low Stub3 June 2016Unsourced statements (June 2016), ... (June 2016), Weasel-worded phrases (June 2016)
Electromeric effect Mid Stub1 May 2017... (May 2017)
Electron capture detector Low C2 March 2017Unsourced statements (March 2017), ... (March 2017)
Electrophilic aromatic substitution High C1 April 2017... (April 2017)
Electrophilic halogenation Mid C1 June 2017... (June 2017)
Electrorheological fluid Low Start1 April 2010... (April 2010)
Empty lattice approximation Low Start1 November 2014... (November 2014)
Ene reaction Mid C1 November 2011... (November 2011)
Energetically modified cement Low Start1 March 2014... (March 2014)
Energy level High Start3 December 2009References needed (December 2009), Weasel-worded phrases (January 2014), ... (May 2014)
Enol High C8 October 2010Unsourced statements (October 2010, July 2015), ... (October 2010, July 2015), References needed (July 2015), Expansion needed (July 2015), Reliable references lacking (July 2015), Disputed statements (July 2015)
Enthalpy Top C1 March 2015... (March 2015)
Eutectic system Low C1 November 2014... (November 2014)
Exothermic process Mid Start3 March 2015... (March 2015), Disputed statements (March 2015), Failed verification (January 2018)
Femtochemistry Mid Start1 June 2015... (June 2015)
Ferrocerium Low Start1 July 2017... (July 2017)
Filter press Low C2 July 2017CS1 errors: dates, ... (July 2017)
Flamelet generated manifold Low Stub5 August 2014References needed (August 2014), ... (November 2015), Notability unclear (November 2015), Conflict of interest (November 2015), Disputed statements (November 2015)
Fourier-transform spectroscopy Mid Start1 August 2016... (August 2016)
Fritz Haber High C4 October 2014... (October 2014), Page number citations needed (May 2016), Unsourced statements (August 2017, September 2017)
Gadolinium-doped ceria Low Stub1 August 2013... (August 2013)
Galvanization Mid Start8 May 2012References needed (May 2012), Unsourced statements (March 2013, February 2017, November 2017, March 2018), Weasel-worded phrases (March 2013), ... (February 2017, November 2017)
Gasoline Mid B14 June 2009... (June 2009, January 2015, July 2016, August 2016), Unsourced statements (September 2014, April 2016, June 2015, August 2016, October 2016, May 2017, February 2018), Update needed (April 2016), Dead external links (January 2017, August 2017)
Gibbs free energy Top B7 March 2015Expert attention needed (April 2018), ... (March 2015, October 2016), Dead external links (January 2017), References needed (August 2017), Too technical (April 2018)
Glycopeptide Low Start2 April 2013Unsourced statements (April 2013), ... (April 2013)
Gold plating Low Start3 January 2013Unsourced statements (January 2013, December 2017), ... (April 2013)
Grotthuss mechanism Mid Start2 February 2011... (February 2011), Unsourced statements (October 2016)
Ground glass joint Low C2 November 2016References needed (November 2016), ... (June 2017)
Hammett equation Mid Start11 June 2015Unsourced statements (June 2015), Style editing needed (June 2015), Update needed (June 2015), References needed (June 2015), Reliable references lacking (June 2015), Cleanup needed (June 2015, June 2015), ... (June 2015), Factual verification needed (June 2015), Page number citations needed (June 2015), References lacking (June 2015)
Hans Meerwein Mid Stub1 June 2016... (June 2016)
Health effects of radon Low Start3 June 2010Unsourced statements (July 2010, June 2010), ... (June 2010)
Heterogeneous water oxidation Low Start1 June 2017... (June 2017)
Homogeneity and heterogeneity Mid Stub3 September 2010Unsourced statements (September 2010), ... (September 2010), Dead external links (July 2016)
Homogeneous and heterogeneous mixtures Mid Stub2 May 2018Citation with format and no URL, ... (May 2018)
Hydrogen bond High B1 December 2015... (December 2015)
Hydrometallurgy Mid Start3 September 2010Unsourced statements (September 2010, November 2010), ... (September 2010)
Hydron (chemistry) High Start2 November 2011Unsourced statements (November 2011), ... (September 2016)
Hydrophobe High C1 January 2015... (January 2015)
IUPAC nomenclature of organic chemistry High Start3 January 2012Unsourced statements (January 2012), ... (February 2016), Update needed (November 2017)
Ida Noddack Mid Start1 November 2009... (November 2009)
Inner sphere electron transfer Low C1 June 2010... (June 2010)
Intercalation (chemistry) Mid Start1 January 2018... (January 2018)
Iodometry Low Start1 June 2017... (June 2017)
Ionic conductivity (solid state) Low Stub4 October 2007... (October 2007), Expert attention needed (October 2010), Too technical (October 2010)
Iptycene Low Stub1 May 2018... (May 2018)
Irreducible representation Mid Start3 July 2013Unsourced statements (July 2013), ... (July 2016), Dead external links (November 2017)
Irving–Williams series Low Start1 August 2015... (August 2015)
Josiah Willard Gibbs High FA1 August 2017... (August 2017)
Julius Rebek Low C2 February 2015Unsourced statements (March 2015), ... (February 2015)
L-Ribonucleic acid aptamer Low Start1 June 2012... (June 2012)
Lattice energy High Start3 January 2013Cleanup needed (January 2013, January 2013), ... (December 2017)
Lead–acid battery Mid C4 July 2013References needed (December 2013, December 2017), ... (July 2013), Dead external links (December 2016)
Linear acetylenic carbon Low Start3 January 2016URL error, ... (January 2016, June 2017)
Lipid polymorphism Low Start2 January 2015... (January 2015), Disputed statements (January 2015)
Liquid junction potential Low Stub1 June 2013... (June 2013)
Lithium soap Mid Stub2 January 2013Unsourced statements (January 2013), ... (January 2013)
Lotus effect Low Start2 January 2015Unsourced statements (January 2015), ... (January 2015)
Meisenheimer complex Mid C1 September 2015... (September 2015)
Mendeleev readings Low Start1 February 2017... (February 2017)
Metallic bonding High C3 October 2009References needed (October 2009, September 2014), ... (January 2014)
Mixed oxide Mid Stub2 June 2009... (June 2009), Unsourced statements (June 2009)
Morris S. Kharasch Unknown Unassessed2 May 2017Citation lacking title, ... (May 2017)
Mushet steel Low C1 December 2010... (December 2010)
NanoPutian Mid B4 February 2017Expert attention needed (February 2017), ... (February 2017), Too technical (February 2017)
Nanocellulose High B9 May 2013Unsourced statements (October 2014, March 2017), ... (May 2013, March 2017), CS1 errors: external links, Page number citations needed (March 2017), Weasel-worded phrases (March 2017), Reliable references lacking (March 2017), Dead external links (February 2018)
Neonicotinoid Low C8 2013Potentially dated statements (2013, 2014), Unsourced statements (March 2015, February 2018, April 2018), Vague or ambiguous geographic scope (March 2015), ... (September 2016), Dead external links (April 2018)
Neutronium Low Start5 February 2013Reliable references lacking (February 2013), Original research (February 2013), ... (April 2013), Unsourced statements (February 2017, June 2017)
Nickel titanium Mid Start2 January 2017CS1 errors: dates, ... (January 2017)
Nickel–metal hydride battery Low C4 2005Potentially dated statements (2005), References needed (July 2015), ... (January 2013), Unsourced statements (June 2015)
Nitrogen inversion Mid Start1 November 2014... (November 2014)
Organoarsenic chemistry High C1 December 2013... (December 2013)
Organometallic chemistry Top Start3 May 2016Unsourced statements (May 2016), Reliable references lacking (May 2016), ... (May 2016)
Organophosphate High C5 March 2017Unsourced statements (March 2017, March 2018), Weasel-worded phrases (March 2017), ... (March 2017), Failed verification (March 2018)
Oxidation state High C1 April 2018... (April 2018)
PH Top C2 October 2014... (October 2014), Failed verification (December 2017)
Paracelsus High C6 June 2017Unsourced statements (June 2017), Disputed statements (June 2017), ... (August 2017), Cleanup needed (January 2018, January 2018), Dead external links (March 2018)
Perkin triangle Low Start2 March 2008Unsourced statements (March 2008), ... (January 2016)
Pharmaceutical industry Mid C4 June 2015Unsourced statements (November 2015, June 2015), ... (June 2015), Limited geographic scope (August 2015)
Physical organic chemistry High Start7 June 2015Expansion needed (June 2015), Unsourced statements (June 2015), Reliable references lacking (June 2015), ... (June 2015), Factual verification needed (June 2015), Page number citations needed (June 2015), References lacking (June 2015)
Pnictogen Low Start2 October 2015Unsourced statements (October 2015), ... (October 2015)
Polarography Mid C1 November 2015... (November 2015)
Polycyclic aromatic hydrocarbon High B4 January 2014Detailed references needed, Unsourced statements (June 2014, July 2017), ... (January 2014)
Polyethylene High B3 September 2012Cleanup needed (September 2012, September 2012), ... (October 2017)
Potential determining ion Low Start2 August 2009... (August 2009), References needed (September 2014)
Potential gradient Mid Start1 March 2013... (March 2013)
Proton-coupled electron transfer Mid Start1 June 2013... (June 2013)
Protonium Low Start1 January 2017... (January 2017)
Q-carbon Low Start5 December 2015Expert attention needed (January 2017), Original research (December 2015), ... (January 2017), Dead external links (April 2018)
Quantemol-DB Low Start7 April 2017Conflict of interest (April 2017), Peacock terms (April 2017), Reference cleanup (April 2017), Unsourced statements (July 2017), Merge needed (July 2017), Weasel-worded phrases (July 2017), ... (July 2017)
Quaternary ammonium cation Mid Start4 January 2013Unsourced statements (January 2013, September 2015), CS1 errors: dates, ... (August 2014)
Radical polymerization Mid C1 May 2017... (May 2017)
Redox Top C1 January 2011... (January 2011)
Reduction potential High Start4 May 2008References needed (May 2008, October 2011), Unsourced statements (April 2012), ... (February 2012)
Reversed-phase chromatography Low Start1 September 2008... (September 2008)
Saturation (chemistry) Mid Start1 September 2016... (September 2016)
Second law of thermodynamics Top C2 August 2012Unsourced statements (August 2012), ... (February 2014)
Secondary flux Low Stub1 July 2016... (July 2016)
Self-assembly of nanoparticles Low C3 November 2013Reliable references lacking (November 2013), Unsourced statements (October 2016), ... (January 2018)
Solvent High B3 March 2017Unsourced statements (March 2017, January 2018), ... (March 2017)
Spiro compound Mid C11 February 2016Unsourced statements (February 2016), Citation with format and no URL, References needed (February 2016), Reliable references lacking (February 2016), Expansion needed (February 2016), Self-contradictory articles (February 2016), ... (February 2016), Factual verification needed (February 2016, March 2016), Cleanup needed (October 2017, October 2017)
Steel High GA5 October 2015Vague or ambiguous time (October 2015), ... (April 2016), Weasel-worded phrases (October 2016), Unsourced statements (January 2017, March 2018)
Stereocenter High Start5 February 2016Expert attention needed (February 2016), References needed (February 2016), ... (February 2016), Page number citations needed (February 2016)
Strobilurin Low Stub2 July 2011... (July 2011), Dead external links (August 2017)
Surface tension Mid GA2 March 2015Disputed statements (March 2015), ... (May 2016)
Synthon Mid Start4 December 2013Expert attention needed (September 2015), ... (December 2013), Too technical (September 2015)
Tetrathiafulvalene Low Start1 December 2016... (December 2016)
Thermodynamic equations Mid C1 May 2018... (May 2018)
Thermolabile protecting groups Low Stub2 August 2013... (August 2013), Orphaned (October 2015)
Thioketal Low Stub2 October 2008Sources lacking (October 2008), ... (May 2017)
Thiosulfinate Low Stub1 October 2014... (October 2014)
Third law of thermodynamics Top C3 January 2013Unsourced statements (January 2013), Page number citations needed (January 2013), ... (April 2015)
Tiffeneau–Demjanov rearrangement Mid C2 July 2011Unsourced statements (July 2011), ... (July 2011)
Timeline of chemical element discoveries Mid C3 September 2010Dead external links (September 2010), CS1 errors: chapter ignored, ... (March 2018)
Total organic carbon Mid Start6 January 2009References needed (January 2009, April 2012), Unsourced statements (April 2012, August 2013), ... (November 2016), Split needed (September 2017)
Toxin Mid Start3 August 2008Unsourced statements (August 2008, November 2010), ... (August 2015)
Transition metal hydride Mid C1 November 2015... (November 2015)
Transition state theory High C2 April 2009Unsourced statements (April 2009), ... (April 2015)
Tropospheric ozone depletion events Low Stub4 July 2013Expert attention needed (July 2013), ... (July 2013, November 2013)
UK Molecular R-matrix Codes Low Stub6 January 2018Expert attention needed (January 2018), Context needed (January 2018), Too technical (January 2018), ... (January 2018), Introduction cleanup (January 2018)
Uniaxial crystal Low Stub3 September 2009Sources lacking (September 2009), Style editing needed (September 2009), ... (September 2009)
Water cluster Low C2 January 2015Unsourced statements (January 2015), ... (January 2015)
Wilhelm Ostwald High C2 April 2016... (April 2016), Unsourced statements (August 2017)
Windshield washer fluid Low Start7 June 2010Detailed references needed, Unsourced statements (August 2010, November 2010), ... (June 2010), References needed (January 2016), Weasel-worded phrases (January 2016), In-text citations lacking (January 2017)
Wire gauze Low Start2 August 2017Vague or ambiguous geographic scope (August 2017), ... (August 2017)
X-ray crystallography High GA4 February 2009... (February 2009, February 2015, July 2016), Unsourced statements (March 2014)
Xylene Mid Start2 June 2016... (June 2016), Dead external links (July 2016)
Yamaguchi esterification Mid Start1 August 2015... (August 2015)
Ynone Low Start1 May 2017... (May 2017)
Zeotropic mixture Low Start1 January 2012... (January 2012)

Context needed (34)

ArticleImportanceClassCount OldestIssues
Atoms in molecules Mid Start2 July 2017... (July 2017), Introduction cleanup (July 2017)
Ballistic conduction in single-walled carbon nanotubes Low Start5 April 2011Expert attention needed (May 2011), Introduction cleanup (April 2011, May 2014), ... (April 2011)
Bancroft rule Mid Start2 October 2009Introduction cleanup (October 2009), ... (October 2009)
CDw17 antigen Low Stub2 March 2009Introduction cleanup (March 2009), ... (March 2009)
Chlorographene Low Start3 November 2012Introduction cleanup (November 2012), ... (November 2012), Clarification needed (May 2015)
Dynamic combinatorial chemistry Low C2 October 2014... (October 2014), Unsourced statements (October 2017)
FreeON Low Stub3 June 2010Introduction cleanup (June 2010), ... (June 2010), Orphaned (January 2011)
GM3 Low Stub2 August 2014Introduction cleanup (August 2014), ... (August 2014)
Headspace gas chromatography for dissolved gas measurement Mid C4 December 2014Expansion needed (December 2014), Introduction cleanup (December 2014), Orphaned (December 2014), ... (December 2014)
Heteroatom Low Stub2 April 2016Introduction cleanup (April 2016), ... (April 2016)
Immobilized pH gradient Low Stub2 October 2009Introduction cleanup (October 2009), ... (October 2009)
Intrinsic Noise Analyzer Low Stub5 July 2012Expert attention needed (July 2012), ... (July 2012), Introduction cleanup (July 2012), References needed (July 2012)
Iron oxide cycle Low Stub1 September 2011... (September 2011)
Job plot Low Start2 October 2009Introduction cleanup (October 2009), ... (October 2009)
Molecular probe Low Stub2 October 2009Introduction cleanup (October 2009), ... (October 2009)
Monosaccharide High Start2 July 2009References needed (July 2009), ... (September 2013)
Narrow-range ethoxylate Mid Start5 July 2009Introduction cleanup (July 2009), ... (July 2009), Expert attention needed (September 2012), Merge needed (September 2017)
Organic molecular tracers Low Start6 December 2009Expert attention needed (December 2009), Introduction cleanup (December 2009), ... (December 2009), Orphaned (April 2010), Too technical (December 2009)
Organostannane addition Mid C3 June 2010Introduction cleanup (June 2010), ... (June 2010), Merge needed (December 2017)
Preferential alignment Low Stub4 January 2009Sources lacking (January 2009), Introduction cleanup (October 2009), ... (October 2009), Unsourced statements (December 2016)
Robert H. Christenson Low Stub5 November 2013Reliable references lacking (November 2013), Orphaned (June 2016), ... (March 2018), Introduction cleanup (March 2018), Vague or ambiguous time (March 2018)
Sequence-defined polymer Unknown Start2 February 2018Introduction cleanup (February 2018), ... (February 2018)
Sequential structure alignment program Low Stub2 November 2009... (November 2009), Introduction cleanup (November 2009)
Sequential walking Low Stub3 October 2009Sources lacking (December 2009), Introduction cleanup (October 2009), ... (October 2009)
Stability constants of complexes High C2 February 2015Introduction cleanup (February 2015), ... (February 2015)
Staggered conformation Low Stub2 March 2011Introduction cleanup (March 2011), ... (March 2011)
Steric exclusion Low Stub2 March 2011Introduction cleanup (March 2011), ... (March 2011)
Tetraanthraporphyrin Low Start4 February 2014Unsourced statements (February 2014), Introduction cleanup (February 2014), Weasel-worded phrases (February 2014), ... (February 2014)
Thermodynamics of micellization Low C5 June 2012Expert attention needed (June 2012), ... (June 2012), Introduction cleanup (June 2012), Too technical (June 2012)
UK Molecular R-matrix Codes Low Stub6 January 2018Expert attention needed (January 2018), ... (January 2018), Too technical (January 2018), Clarification needed (January 2018), Introduction cleanup (January 2018)
X-ray Photon Correlation Spectroscopy Low Stub6 August 2017Expert attention needed (August 2017), ... (August 2017), Introduction cleanup (August 2017), Reorganization needed (August 2017), Too technical (August 2017)
ZACA reaction Low Stub3 March 2017Citation lacking title, ... (March 2017), Introduction cleanup (March 2017)
Zinc–zinc oxide cycle Low Stub1 September 2011... (September 2011)
Σ-bishomoaromaticity Low Stub2 June 2017Introduction cleanup (June 2017), ... (June 2017)

Expert attention needed (119)

ArticleImportanceClassCount OldestIssues
1s Slater-type function Low Start3 July 2012... (July 2012), Too technical (July 2012)
Anti-corrosion Mid Start3 October 2009References needed (October 2009), ... (February 2011)
Ballistic conduction in single-walled carbon nanotubes Low Start5 April 2011... (May 2011), Introduction cleanup (April 2011, May 2014), Context needed (April 2011)
Beader Unknown Unassessed4 December 2009Sources lacking (December 2009), ... (July 2017), Notability unclear (July 2017)
Biosynthesis of cocaine Low C3 July 2017... (July 2017), Too technical (July 2017)
Blank (solution) Low Stub2 September 2012... (September 2012)
Bridged compounds Mid Stub7 February 2016... (February 2016), References needed (March 2016), In-text citations lacking (February 2016), Expansion needed (March 2016), Cleanup needed (March 2016), List cleanup (March 2016)
CLP Regulation Mid Start4 November 2015... (November 2015), Reliable references lacking (November 2015), Too technical (November 2015)
Carbohydrate conformation Low C3 January 2012... (January 2012), References needed (January 2012)
Carbohydrate synthesis Mid C3 February 2016... (February 2016), Too technical (February 2016)
Catalyst poisoning Low Stub2 June 2016... (June 2016)
Catalytically competent protonation state Low Start4 June 2010... (June 2010), Sources lacking (June 2010), Original research (June 2010)
Ceramic colorants Low Start3 May 2008... (May 2008), In-text citations lacking (November 2010)
Ceramic flux Low Start2 March 2012... (March 2012)
Chemical ecology Low Stub8 March 2017Detailed references needed, ... (March 2017), Unsourced statements (March 2017), Weasel-worded phrases (March 2017), Self-contradictory articles (March 2017), Clarification needed (March 2017), Reliable references lacking (March 2017)
Chemical state Mid Start2 November 2008... (November 2008)
Chemical structure High Stub5 July 2015... (July 2015), References needed (October 2015), Unsourced statements (July 2015), In-text citations lacking (October 2015)
Chemical synthesis High Start2 March 2016... (March 2016)
Chiral Lewis acid Mid C2 November 2013... (November 2013)
Chondronectin Low Stub3 October 2010... (January 2016), Orphaned (October 2010)
Cobalt(II)–porphyrin catalysis Low Start6 April 2017... (April 2017), Too technical (April 2017), Orphaned (April 2017), Wikilinks needed (May 2017), Reliable references lacking (May 2017)
Cobalt-mediated radical polymerization Low Start2 July 2010... (July 2010)
Complex metallic alloys Low Start2 November 2008... (November 2008)
Corticosteroid Low C3 2010Potentially dated statements (2010), ... (January 2018)
Crich beta-mannosylation Low C4 May 2009References needed (May 2009), ... (January 2014), Orphaned (January 2011)
Cyclic compound High Start13 April 2015... (April 2015), Reliable references lacking (April 2015), Expansion needed (June 2015, April 2015), References needed (April 2015, June 2015), Unsourced statements (April 2015, June 2015), Clarification needed (April 2015), Page number citations needed (April 2015, June 2015), Factual verification needed (April 2015)
Denitrification Low C3 August 2015... (August 2015), Too technical (August 2015)
Detection limit Mid C4 January 2016... (January 2016), References needed (January 2016), Accuracy disputes or self-published (January 2016)
Diketopyrrolopyrrole dye Low Stub4 June 2016... (June 2016), References needed (January 2017), Wikilinks needed (January 2017)
Dipole Mid Start4 April 2015... (February 2018), Unsourced statements (April 2015), Too technical (February 2018)
Dodecaborate Low Start3 January 2017... (January 2017), Too technical (January 2017)
Elimination reaction of free radicals Mid Start5 October 2017... (October 2017), Too technical (October 2017), Style editing needed (October 2017), References needed (October 2017)
End-group Mid C3 May 2014... (May 2014), Too technical (May 2014)
Enhancement or quenching of QD, Q-wire and QW radiations Low Start2 June 2009... (June 2009)
Epicatalysis Low Start4 September 2015... (September 2015, March 2016), Too technical (September 2015)
Estuarine acidification Low Start5 October 2013Detailed references needed, ... (October 2013), References needed (September 2014), Too technical (October 2013)
Evaporation High Start4 November 2008... (November 2008), Unsourced statements (January 2013), References needed (August 2016)
Explosive boiling or phase explosion Low Start3 June 2013... (June 2013), Too technical (June 2013)
Extended periodic table Low B7 April 2011... (December 2011), Unsourced statements (February 2012), Potentially dated statements (April 2011), Weasel-worded phrases (October 2011, May 2018), Dead external links (October 2016)
Fat High Start6 October 2013... (April 2014, June 2015), Unsourced statements (September 2014), References needed (October 2013), Too technical (June 2015)
Fine electronic structure Low Stub2 May 2018... (May 2018)
Fractional coordinates Low Start3 June 2012... (June 2012), References needed (August 2016)
Frigorific mixture Low Start3 January 2014... (January 2014), Unsourced statements (February 2018)
Functionalized polyolefins Mid Start5 March 2016... (March 2016), Reliable references lacking (March 2016), Weasel-worded phrases (March 2016), Orphaned (May 2016)
GROMOS Low Start3 November 2012... (November 2012), Too technical (November 2012)
Gibbs free energy Top B7 March 2015... (April 2018), Clarification needed (March 2015, October 2016), Dead external links (January 2017), References needed (August 2017), Too technical (April 2018)
Glass poling Low Start3 June 2013... (June 2013), Too technical (June 2013)
Graphene chemistry Low C3 December 2013... (December 2013), Too technical (December 2013)
Henderson–Hasselbalch equation Mid C4 February 2017... (February 2017), Original research (February 2017), References needed (February 2017)
Indium-mediated allylation Low Start5 August 2012... (August 2012), Unsourced statements (August 2012), Too technical (August 2012), Reliable references lacking (June 2014)
Internal Coordinate Mechanics Low Stub2 November 2008... (November 2008)
Intrinsic Noise Analyzer Low Stub5 July 2012... (July 2012), Context needed (July 2012), Introduction cleanup (July 2012), References needed (July 2012)
Ionic conductivity (solid state) Low Stub4 October 2007Clarification needed (October 2007), ... (October 2010), Too technical (October 2010)
Ionosilica Unknown Unassessed5 November 2015... (November 2015), Orphaned (November 2015), Conflict of interest (November 2015), Reliable references lacking (April 2018)
Judd–Ofelt theory Mid Stub4 November 2015... (November 2015), Expansion needed (November 2015), Orphaned (November 2015)
Kinetic Inhibitor Low Stub3 August 2012... (August 2012), Too technical (August 2012)
Korean Fiber Society Low Stub3 September 2009... (September 2009), Orphaned (January 2011)
Liesegang rings Low Start3 November 2010... (November 2010), In-text citations lacking (November 2010)
Ligand bond number Low Start3 October 2012... (October 2012), Too technical (October 2012)
Lignan Low Start4 January 2017... (January 2017), Too technical (January 2017), Unsourced statements (July 2017)
Liquid crystalline elastomer Low Start4 May 2017... (May 2017), Too technical (May 2017), Orphaned (June 2017)
List of commonly available chemicals Mid List3 June 2009Unsourced statements (June 2009), ... (March 2013)
List of unsolved problems in chemistry Low List8 November 2011References needed (December 2014), ... (November 2011), Accuracy disputes or self-published (November 2011), Unsourced statements (December 2014), Reliable references lacking (December 2014), Weasel-worded phrases (December 2014), Factual verification needed (December 2014)
Lithium hybrid organic battery Low Start5 April 2015... (April 2015), Orphaned (April 2015), Too technical (April 2015), Wikilinks needed (June 2015)
Lyotropy Unknown Start5 March 2018... (March 2018), Too technical (March 2018), Wikilinks needed (March 2018), Orphaned (March 2018)
Meta-selective C–H functionalization Low Start3 December 2014... (December 2014), Too technical (December 2014)
Metal-phenolic network Low Stub4 February 2016... (February 2016), Wikilinks needed (February 2016), Too technical (February 2016)
Mixed oxidant Low Start6 September 2015... (September 2015), Reliable references lacking (October 2015), Promotional tone (September 2015), Too technical (September 2015), Orphaned (June 2016)
NanoPutian Mid B4 February 2017... (February 2017), Clarification needed (February 2017), Too technical (February 2017)
Narrow-range ethoxylate Mid Start5 July 2009Introduction cleanup (July 2009), Context needed (July 2009), ... (September 2012), Merge needed (September 2017)
Nephelauxetic effect Mid Start3 March 2013... (March 2013), Too technical (March 2013)
Non-linear effects Low C3 June 2014... (June 2014), Too technical (June 2014)
Nucleic acid analogue Low C3 February 2017... (February 2017), Citation lacking title
Organic molecular tracers Low Start6 December 2009... (December 2009), Introduction cleanup (December 2009), Context needed (December 2009), Orphaned (April 2010), Too technical (December 2009)
Parent hydride Mid Stub2 March 2016... (March 2016)
Pentagonal bipyramidal molecular geometry Mid Stub3 April 2017... (April 2017), References needed (April 2017)
Phosphonium coupling Low Start4 March 2012... (March 2012), Too technical (March 2012), Orphaned (February 2013)
Physical vapor deposition Mid Stub4 February 2009... (February 2009), In-text citations lacking (April 2011), Unsourced statements (July 2016)
Plate reader Low Start3 November 2008References needed (April 2012), ... (November 2008)
Poly(methylsilyne) Low Start3 December 2017... (December 2017), References needed (December 2017)
Polyetherketoneketone Low Stub3 June 2013... (June 2013), Too technical (June 2013)
Polyphenol Mid Start3 July 2016... (July 2016), Too technical (July 2016)
Potential of mean force Low Stub2 November 2008... (November 2008)
Precipitation polymerization Low Start2 July 2009... (July 2009)
Pyramidal carbocation Low Stub3 February 2017... (February 2017), Too technical (February 2017)
Q-carbon Low Start5 December 2015... (January 2017), Original research (December 2015), Clarification needed (January 2017), Dead external links (April 2018)
Quantum-mechanical explanation of intermolecular interactions Low C3 August 2008Unsourced statements (August 2008), ... (September 2009)
Quasi-crystals (supramolecular) Mid Start3 May 2014... (May 2014), Too technical (May 2014)
Reactive oxygen species production in marine microalgae Low B3 April 2013... (April 2013), Too technical (April 2013)
Retention distance Low Stub3 June 2012... (June 2012), Too technical (June 2012)
Riley oxidation Low Start4 April 2017... (May 2017), Reliable references lacking (April 2017), Too technical (May 2017)
Ripening Low Start6 February 2010References needed (February 2010), ... (January 2013), Unsourced statements (July 2016, May 2017), Failed verification (July 2017)
Shape-memory alloy Low Start3 February 2009... (February 2009), Unsourced statements (December 2012)
Silanization of silicon and mica Low Start4 August 2012... (August 2012), Introduction cleanup (August 2012), Too technical (August 2012)
Smart polymer Low Stub4 September 2009... (September 2009), References needed (March 2013), Introduction cleanup (March 2013)
Solid-phase synthesis Mid Stub3 June 2014... (June 2014), Sources lacking (June 2014)
Specific rotation High Start3 October 2010... (October 2010), Too technical (October 2010)
Spin transition Mid Start4 September 2010... (September 2010), Too technical (September 2010), Sources lacking (February 2016)
Sporolides Low Start2 August 2009... (August 2009)
Stereocenter High Start5 February 2016... (February 2016), References needed (February 2016), Clarification needed (February 2016), Page number citations needed (February 2016)
Stereoelectronic effect Mid Start3 November 2013... (November 2013), Too technical (November 2013)
Steroid Mid C9 May 2014... (March 2017), Citation with accessdate and no URL, Page number citations needed (May 2014), Reliable references lacking (July 2014, March 2017), Unsourced statements (March 2017), Factual verification needed (March 2017), Expansion needed (March 2017)
Synthon Mid Start4 December 2013... (September 2015), Clarification needed (December 2013), Too technical (September 2015)
Theoretical oxygen demand Low Stub3 December 2008... (December 2008), References needed (September 2014)
Thermodynamics of micellization Low C5 June 2012... (June 2012), Context needed (June 2012), Introduction cleanup (June 2012), Too technical (June 2012)
Thermoplastic polyurethane Low Start3 September 2010... (September 2010), Too technical (September 2010)
Third phase Low Stub2 February 2009... (February 2009)
Total synthesis Mid Start5 August 2015... (March 2017), Unsourced statements (August 2015), Weasel-worded phrases (March 2017), Vague or ambiguous time (March 2017)
Toxinology Low Start3 February 2009References needed (February 2010), ... (February 2009)
Tropospheric ozone depletion events Low Stub4 July 2013... (July 2013), Clarification needed (July 2013, November 2013)
UK Molecular R-matrix Codes Low Stub6 January 2018... (January 2018), Context needed (January 2018), Too technical (January 2018), Clarification needed (January 2018), Introduction cleanup (January 2018)
Underpotential deposition Low Stub3 September 2010... (September 2010), Too technical (September 2010)
Varrentrapp reaction Low Start3 July 2015Translation cleanup needed, ... (July 2015)
Vinylogy Low Start3 July 2014... (July 2014), References needed (July 2014)
Wiswesser's rule Mid Stub4 February 2009... (February 2009), Sources lacking (July 2014), Style editing needed (November 2015)
X-ray Photon Correlation Spectroscopy Low Stub6 August 2017... (August 2017), Context needed (August 2017), Introduction cleanup (August 2017), Reorganization needed (August 2017), Too technical (August 2017)
Yellowcake Mid Start2 July 2011... (July 2011)
Zero differential overlap Low Stub3 January 2014... (January 2014), Too technical (January 2014)
Zone axis Low C3 October 2014... (October 2014), Too technical (October 2014)

Rewrite needed (7)

ArticleImportanceClassCount OldestIssues
Amorphous carbon Low Start1 December 2012... (December 2012)
Amperometric titration Mid Start1 March 2011... (March 2011)
Anaglypta Low Start3 August 2012Unsourced statements (October 2013, June 2014), ... (August 2012)
Charge number Mid Stub1 January 2014... (January 2014)
Cyclohexane conformation Mid C10 January 2008References needed (January 2008, May 2014), Unsourced statements (January 2008, May 2014, August 2011), Clarification needed (May 2014), Reliable references lacking (May 2014), Cleanup needed (May 2014, May 2014), ... (May 2014)
Flame ionization detector Low Stub2 October 2008... (October 2008), In-text citations lacking (July 2011)
Illudin Low Stub1 August 2015... (August 2015)

Self-contradictory articles (2)

ArticleImportanceClassCount OldestIssues
Chemical ecology Low Stub8 March 2017Detailed references needed, Expert attention needed (March 2017), Unsourced statements (March 2017), Weasel-worded phrases (March 2017), ... (March 2017), Clarification needed (March 2017), Reliable references lacking (March 2017)
Spiro compound Mid C11 February 2016Unsourced statements (February 2016), Citation with format and no URL, References needed (February 2016), Reliable references lacking (February 2016), Expansion needed (February 2016), ... (February 2016), Clarification needed (February 2016), Factual verification needed (February 2016, March 2016), Cleanup needed (October 2017, October 2017)

Too technical (53)

ArticleImportanceClassCount OldestIssues
1s Slater-type function Low Start3 July 2012Expert attention needed (July 2012), ... (July 2012)
Biosynthesis of cocaine Low C3 July 2017Expert attention needed (July 2017), ... (July 2017)
CLP Regulation Mid Start4 November 2015Expert attention needed (November 2015), Reliable references lacking (November 2015), ... (November 2015)
Carbohydrate synthesis Mid C3 February 2016Expert attention needed (February 2016), ... (February 2016)
Cobalt(II)–porphyrin catalysis Low Start6 April 2017Expert attention needed (April 2017), ... (April 2017), Orphaned (April 2017), Wikilinks needed (May 2017), Reliable references lacking (May 2017)
Denitrification Low C3 August 2015Expert attention needed (August 2015), ... (August 2015)
Dipole Mid Start4 April 2015Expert attention needed (February 2018), Unsourced statements (April 2015), ... (February 2018)
Dodecaborate Low Start3 January 2017Expert attention needed (January 2017), ... (January 2017)
Elimination reaction of free radicals Mid Start5 October 2017Expert attention needed (October 2017), ... (October 2017), Style editing needed (October 2017), References needed (October 2017)
End-group Mid C3 May 2014Expert attention needed (May 2014), ... (May 2014)
Epicatalysis Low Start4 September 2015Expert attention needed (September 2015, March 2016), ... (September 2015)
Estuarine acidification Low Start5 October 2013Detailed references needed, Expert attention needed (October 2013), References needed (September 2014), ... (October 2013)
Explosive boiling or phase explosion Low Start3 June 2013Expert attention needed (June 2013), ... (June 2013)
Fat High Start6 October 2013Expert attention needed (April 2014, June 2015), Unsourced statements (September 2014), References needed (October 2013), ... (June 2015)
GROMOS Low Start3 November 2012Expert attention needed (November 2012), ... (November 2012)
Gibbs free energy Top B7 March 2015Expert attention needed (April 2018), Clarification needed (March 2015, October 2016), Dead external links (January 2017), References needed (August 2017), ... (April 2018)
Glass poling Low Start3 June 2013Expert attention needed (June 2013), ... (June 2013)
Graphene chemistry Low C3 December 2013Expert attention needed (December 2013), ... (December 2013)
Indium-mediated allylation Low Start5 August 2012Expert attention needed (August 2012), Unsourced statements (August 2012), ... (August 2012), Reliable references lacking (June 2014)
Ionic conductivity (solid state) Low Stub4 October 2007Clarification needed (October 2007), Expert attention needed (October 2010), ... (October 2010)
Kinetic Inhibitor Low Stub3 August 2012Expert attention needed (August 2012), ... (August 2012)
Ligand bond number Low Start3 October 2012Expert attention needed (October 2012), ... (October 2012)
Lignan Low Start4 January 2017Expert attention needed (January 2017), ... (January 2017), Unsourced statements (July 2017)
Liquid crystalline elastomer Low Start4 May 2017Expert attention needed (May 2017), ... (May 2017), Orphaned (June 2017)
Lithium hybrid organic battery Low Start5 April 2015Expert attention needed (April 2015), Orphaned (April 2015), ... (April 2015), Wikilinks needed (June 2015)
Lyotropy Unknown Start5 March 2018Expert attention needed (March 2018), ... (March 2018), Wikilinks needed (March 2018), Orphaned (March 2018)
Meta-selective C–H functionalization Low Start3 December 2014Expert attention needed (December 2014), ... (December 2014)
Metal-phenolic network Low Stub4 February 2016Expert attention needed (February 2016), Wikilinks needed (February 2016), ... (February 2016)
Mixed oxidant Low Start6 September 2015Expert attention needed (September 2015), Reliable references lacking (October 2015), Promotional tone (September 2015), ... (September 2015), Orphaned (June 2016)
NanoPutian Mid B4 February 2017Expert attention needed (February 2017), Clarification needed (February 2017), ... (February 2017)
Nephelauxetic effect Mid Start3 March 2013Expert attention needed (March 2013), ... (March 2013)
Non-linear effects Low C3 June 2014Expert attention needed (June 2014), ... (June 2014)
Organic molecular tracers Low Start6 December 2009Expert attention needed (December 2009), Introduction cleanup (December 2009), Context needed (December 2009), Orphaned (April 2010), ... (December 2009)
Phosphonium coupling Low Start4 March 2012Expert attention needed (March 2012), ... (March 2012), Orphaned (February 2013)
Polyetherketoneketone Low Stub3 June 2013Expert attention needed (June 2013), ... (June 2013)
Polyphenol Mid Start3 July 2016Expert attention needed (July 2016), ... (July 2016)
Pyramidal carbocation Low Stub3 February 2017Expert attention needed (February 2017), ... (February 2017)
Quasi-crystals (supramolecular) Mid Start3 May 2014Expert attention needed (May 2014), ... (May 2014)
Reactive oxygen species production in marine microalgae Low B3 April 2013Expert attention needed (April 2013), ... (April 2013)
Retention distance Low Stub3 June 2012Expert attention needed (June 2012), ... (June 2012)
Riley oxidation Low Start4 April 2017Expert attention needed (May 2017), Reliable references lacking (April 2017), ... (May 2017)
Silanization of silicon and mica Low Start4 August 2012Expert attention needed (August 2012), Introduction cleanup (August 2012), ... (August 2012)
Specific rotation High Start3 October 2010Expert attention needed (October 2010), ... (October 2010)
Spin transition Mid Start4 September 2010Expert attention needed (September 2010), ... (September 2010), Sources lacking (February 2016)
Stereoelectronic effect Mid Start3 November 2013Expert attention needed (November 2013), ... (November 2013)
Synthon Mid Start4 December 2013Expert attention needed (September 2015), Clarification needed (December 2013), ... (September 2015)
Thermodynamics of micellization Low C5 June 2012Expert attention needed (June 2012), Context needed (June 2012), Introduction cleanup (June 2012), ... (June 2012)
Thermoplastic polyurethane Low Start3 September 2010Expert attention needed (September 2010), ... (September 2010)
UK Molecular R-matrix Codes Low Stub6 January 2018Expert attention needed (January 2018), Context needed (January 2018), ... (January 2018), Clarification needed (January 2018), Introduction cleanup (January 2018)
Underpotential deposition Low Stub3 September 2010Expert attention needed (September 2010), ... (September 2010)
X-ray Photon Correlation Spectroscopy Low Stub6 August 2017Expert attention needed (August 2017), Context needed (August 2017), Introduction cleanup (August 2017), Reorganization needed (August 2017), ... (August 2017)
Zero differential overlap Low Stub3 January 2014Expert attention needed (January 2014), ... (January 2014)
Zone axis Low C3 October 2014Expert attention needed (October 2014), ... (October 2014)

Vague or ambiguous geographic scope (5)

ArticleImportanceClassCount OldestIssues
Biomonitoring Mid C6 April 2012Page number citations needed (April 2012), Unsourced statements (April 2016), Expansion needed (April 2016), Limited geographic scope (April 2016), Reliable references lacking (April 2016), ... (April 2016)
Creosote Low B8 October 2016Failed verification (October 2016), Unsourced statements (January 2017, February 2017, December 2017, January 2018), Weasel-worded phrases (January 2017), ... (January 2017), Vague or ambiguous time (December 2017)
Neonicotinoid Low C8 2013Potentially dated statements (2013, 2014), Unsourced statements (March 2015, February 2018, April 2018), ... (March 2015), Clarification needed (September 2016), Dead external links (April 2018)
Trans fat Mid B12 September 2010Unsourced statements (May 2014, September 2015, April 2013, June 2015, April 2017), Update needed (September 2010), Obsolete information (March 2012), ... (September 2012), Citation with format and no URL, Dead external links (September 2017, January 2018), Reliable references lacking (November 2017)
Wire gauze Low Start2 August 2017... (August 2017), Clarification needed (August 2017)

Vague or ambiguous time (45)

ArticleImportanceClassCount OldestIssues
Alan Sargeson Low Stub1 June 2016... (June 2016)
Aldol reaction High B2 April 2011... (April 2011), Unsourced statements (March 2016)
Andrew Orr-Ewing Low Start2 August 2017... (August 2017), Unsourced statements (October 2017)
Antifreeze Mid B7 March 2009Unsourced statements (March 2009, November 2010, November 2014), ... (February 2016), Dead external links (October 2016, September 2017, March 2018)
Ayhan Ulubelen Low Start7 May 2012Detailed references needed, Unsourced statements (July 2013), BLP articles lacking sources (May 2012), Clarification needed (May 2012, July 2013), ... (July 2013), Dead external links (October 2016)
Biocatalysis High Start2 January 2011... (January 2011), Page number citations needed (February 2013)
Christopher Longuet-Higgins Low B3 April 2017Unsourced statements (April 2017, May 2018), ... (April 2017)
Creosote Low B8 October 2016Failed verification (October 2016), Unsourced statements (January 2017, February 2017, December 2017, January 2018), Weasel-worded phrases (January 2017), Vague or ambiguous geographic scope (January 2017), ... (December 2017)
Cryochemistry Mid Start5 November 2015Unsourced statements (November 2015), In-text citations lacking (November 2015), Clarification needed (November 2015), ... (November 2015), Dead external links (January 2018)
Dan Shechtman High C4 October 2011Unsourced statements (October 2011, December 2014), ... (October 2011), Update needed (June 2014)
Defoliant Low Stub1 October 2015... (October 2015)
Derek Barton High Start3 December 2015Unsourced statements (December 2015), ... (December 2015), Weasel-worded phrases (December 2015)
Dorothy M. Needham Low Start3 July 2016Dead external links (July 2016), Unsourced statements (July 2016), ... (July 2016)
Ellen D. Williams (scientist) Low Start2 July 2017Unsourced statements (July 2017), ... (July 2017)
Fluorosurfactant Mid Start1 May 2017... (May 2017)
Frederick Sanger Mid B2 November 2013Potentially dated statements (2015), ... (November 2013)
Globally Harmonized System of Classification and Labelling of Chemicals Mid Start7 May 2008Style editing needed (May 2008), In-text citations lacking (September 2013), Dead external links (September 2016), ... (February 2017), Unsourced statements (February 2017), Weasel-worded phrases (February 2017), References needed (February 2017)
Harry Anderson (chemist) Low Start3 April 2014Unsourced statements (April 2014, July 2017), ... (July 2017)
Ian William Murison Smith Low Start1 February 2018... (February 2018)
Isotope High C1 September 2016... (September 2016)
Leo Paquette Low Start7 January 2016Reliable references lacking (January 2016), Unsourced statements (January 2016), Weasel-worded phrases (January 2016), BLP articles lacking sources (April 2016, January 2016), Factual verification needed (January 2016), ... (January 2016)
Manfred Eigen Low C2 March 2016Unsourced statements (March 2016), ... (March 2016)
Melamine foam Low Start2 January 2016... (January 2016), Reliable references lacking (May 2016)
Molecular graphics Mid B3 June 2009References needed (June 2009), Unsourced statements (June 2014), ... (June 2014)
Nano-thermite Low Start1 June 2017... (June 2017)
Nigel Scrutton Low Start1 December 2016... (December 2016)
Noble gas compound Mid C9 January 2015Cleanup needed (January 2015, January 2015), References needed (January 2015), Expansion needed (January 2015), Reliable references lacking (January 2015), Unsourced statements (January 2015), Weasel-worded phrases (January 2015), ... (January 2015), Factual verification needed (January 2015)
Norbornene-mediated meta-C-H activation Low Start1 June 2017... (June 2017)
Octane rating Low C9 June 2009Unsourced statements (June 2009, October 2010, September 2013, August 2013, March 2013, October 2017, April 2018), ... (August 2013), Reliable references lacking (April 2018)
Organic synthesis High B3 March 2016References needed (March 2016), ... (March 2016), Page number citations needed (March 2016)
Organoselenium chemistry High C1 June 2016... (June 2016)
Petroleum coke Low Start2 September 2017Web citation with no URL, ... (September 2017)
Polly Arnold Low Stub1 February 2018... (February 2018)
Robert H. Christenson Low Stub5 November 2013Reliable references lacking (November 2013), Orphaned (June 2016), Context needed (March 2018), Introduction cleanup (March 2018), ... (March 2018)
Roy A. Periana Low Start4 July 2012... (July 2012), Cleanup needed (July 2012), Prose needed (July 2012), Promotional tone (August 2014)
Roy M. Harrison Low Start1 August 2017... (August 2017)
Shankar Balasubramanian Low Start1 July 2016... (July 2016)
Solid nitrogen Low C3 May 2017... (May 2017), Cleanup needed (March 2018, March 2018)
Solvent models Low C1 October 2017... (October 2017)
Stanley B. Prusiner Mid Start2 October 2015... (October 2015), Dead external links (March 2018)
Steel High GA5 October 2015... (October 2015), Clarification needed (April 2016), Weasel-worded phrases (October 2016), Unsourced statements (January 2017, March 2018)
Steven V. Ley Mid Start3 December 2015Potentially dated statements (2015), Unsourced statements (December 2015), ... (December 2015)
Total synthesis Mid Start5 August 2015Expert attention needed (March 2017), Unsourced statements (August 2015), Weasel-worded phrases (March 2017), ... (March 2017)
Yuri Lvov Low Start3 August 2017... (August 2017), BLP articles lacking sources (August 2017), Unsourced statements (August 2017)
Étienne-Émile Baulieu Low C1 April 2015... (April 2015)

Content

Cleanup needed (62)

ArticleImportanceClassCount OldestIssues
Breakthrough of the Year Low List4 December 2012Unsourced statements (December 2012), ... (December 2016), Tables needed (December 2016), List cleanup (December 2016)
Bridged compounds Mid Stub7 February 2016Expert attention needed (February 2016), References needed (March 2016), In-text citations lacking (February 2016), Expansion needed (March 2016), ... (March 2016), List cleanup (March 2016)
Carbocyclic nucleoside Low C2 May 2016... (May 2016), Prose needed (May 2016)
Chemical test Mid List3 February 2016... (February 2016), Prose needed (February 2016), References needed (June 2017)
Cone calorimeter Low Start6 April 2013... (April 2013, April 2013), Peacock terms (May 2014), Promotional tone (May 2014), Wikilinks needed (May 2014), Reference cleanup (May 2014)
Corey–Itsuno reduction Mid C2 January 2011... (January 2011, January 2011)
Cosmochemistry Low Start3 January 2017Prose needed (January 2017), Slanted towards recent events (January 2017), ... (January 2017)
Curt Wittig Low Start5 June 2010... (May 2011, May 2011), Orphaned (June 2010), BLP articles lacking sources (May 2011), Conflict of interest (May 2011)
Cuvette Low Start4 November 2017... (November 2017, November 2017), References needed (November 2017), Clarification needed (January 2018)
Cyclohexane conformation Mid C10 January 2008References needed (January 2008, May 2014), Unsourced statements (January 2008, May 2014, August 2011), Clarification needed (May 2014), Reliable references lacking (May 2014), ... (May 2014, May 2014), Rewrite needed (May 2014)
Cyril Y. Bowers Low Start3 April 2010Orphaned (April 2010), ... (March 2011, March 2011)
Cytochrome P450 Mid B4 January 2010Unsourced statements (January 2010, April 2011), ... (September 2016, September 2016)
Disilyne Low C5 December 2016Dead external links (December 2016, September 2017), ... (June 2017, June 2017), Clarification needed (June 2017)
Disinfectant Low C7 March 2009Unsourced statements (March 2009, May 2014, July 2013, December 2012, January 2011), ... (February 2015, February 2015)
Dry ice color show Low Start3 August 2017... (August 2017, August 2017), Orphaned (August 2017)
Dyeing Mid Start2 January 2011... (January 2011, January 2011)
Döbereiner's triads Low Stub3 December 2013... (December 2013, December 2013), Factual verification needed (March 2018)
Edward I. Solomon Low Stub1 October 2016... (October 2016)
Environmental toxicology Low Start2 August 2014... (August 2014, August 2014)
Extraction (chemistry) Mid Start5 May 2011References needed (May 2011), ... (May 2014, May 2014, June 2015), Introduction cleanup (May 2014)
Fluorophore Mid Start2 February 2016... (February 2016), List cleanup (February 2016)
Fullerene High B4 August 2015... (August 2015, August 2015), Unsourced statements (August 2015), Reliable references lacking (August 2015)
Gas Top B2 March 2018... (March 2018, March 2018)
Gas chromatography ion detector Low Stub3 September 2008Prose needed (September 2008), ... (September 2008), Sources lacking (June 2012)
Hammett equation Mid Start11 June 2015Unsourced statements (June 2015), Style editing needed (June 2015), Update needed (June 2015), References needed (June 2015), Reliable references lacking (June 2015), ... (June 2015, June 2015), Clarification needed (June 2015), Factual verification needed (June 2015), Page number citations needed (June 2015), References lacking (June 2015)
Humidity indicator Low Stub2 August 2010... (August 2010, August 2010)
In situ polymerization Low Stub4 April 2009References needed (April 2009), ... (April 2009, April 2009), Orphaned (December 2015)
Invisible ink Low C2 January 2011... (January 2011), Dead external links (November 2017)
Lars Walløe Low Start3 October 2011... (October 2011, October 2011), BLP articles lacking sources (March 2015)
Lattice energy High Start3 January 2013... (January 2013, January 2013), Clarification needed (December 2017)
List of JWH cannabinoids Low List3 May 2018Notability unclear (May 2018), ... (May 2018, May 2018)
List of chemistry mnemonics Low List4 January 2012... (January 2012, January 2012), Reliable references lacking (January 2012), URL error
List of food additives Mid List3 March 2010... (March 2010, March 2010), Links needing disambiguation (May 2016)
Maria Bakunin Low Stub2 November 2009... (November 2009, November 2009)
Mark Spitler Low Stub3 May 2017... (May 2017), Close paraphrasing (May 2017), Orphaned (June 2017)
Mesoionic carbene Low Start2 November 2017... (November 2017, November 2017)
Microscale chemistry Mid Start1 August 2014... (August 2014)
Molecule editor Low List2 August 2013... (August 2013), List cleanup (August 2013)
Noble gas compound Mid C9 January 2015... (January 2015, January 2015), References needed (January 2015), Expansion needed (January 2015), Reliable references lacking (January 2015), Unsourced statements (January 2015), Weasel-worded phrases (January 2015), Vague or ambiguous time (January 2015), Factual verification needed (January 2015)
Open shell High Start2 November 2010... (November 2010, November 2010)
Oxo Biodegradable Low Start3 January 2014... (January 2014, January 2014), Accuracy disputes or self-published (June 2014)
Paracelsus High C6 June 2017Unsourced statements (June 2017), Disputed statements (June 2017), Clarification needed (August 2017), ... (January 2018, January 2018), Dead external links (March 2018)
Perfluorinated compound Mid List4 2010Potentially dated statements (2010), References needed (August 2015), ... (September 2015), Prose needed (September 2015)
Polyethylene High B3 September 2012... (September 2012, September 2012), Clarification needed (October 2017)
PubChem Low Start3 January 2009References needed (January 2009), ... (November 2009, November 2009)
Quantum chemistry Top C4 January 2011... (January 2011, January 2011), In-text citations lacking (December 2012), Unsourced statements (November 2017)
Ring expansion and ring contraction Mid Stub3 December 2014... (April 2015, April 2015), Reliable references lacking (December 2014)
Roy A. Periana Low Start4 July 2012Vague or ambiguous time (July 2012), ... (July 2012), Prose needed (July 2012), Promotional tone (August 2014)
S. Mageswaran Low Start5 March 2018In-text citations lacking (March 2018), Style editing needed (March 2018), Close paraphrasing (March 2018), ... (March 2018), Unsourced statements (March 2018)
Schrödinger equation High B5 January 2014Unsourced statements (September 2015, January 2014, May 2018), Prose needed (October 2016), ... (October 2016)
Smouldering Low C3 February 2009Prose needed (February 2009), ... (February 2009), Unsourced statements (January 2015)
Solid nitrogen Low C3 May 2017Vague or ambiguous time (May 2017), ... (March 2018, March 2018)
Solution Top C2 June 2014... (June 2014), Prose needed (June 2014)
Spectroscopy Top B4 April 2016Citation with format and no URL, References needed (April 2016), ... (April 2016), Prose needed (April 2016)
Spiro compound Mid C11 February 2016Unsourced statements (February 2016), Citation with format and no URL, References needed (February 2016), Reliable references lacking (February 2016), Expansion needed (February 2016), Self-contradictory articles (February 2016), Clarification needed (February 2016), Factual verification needed (February 2016, March 2016), ... (October 2017, October 2017)
Surfactant Mid C4 January 2011Unsourced statements (January 2011, April 2016), ... (August 2013), Prose needed (August 2013)
Suzanne Fortier Low Stub1 September 2014... (September 2014)
Theoretical chemistry High Start2 January 2011... (January 2011, January 2011)
Thermal desorption Low Start2 December 2008... (December 2008, December 2008)
Titanium Beta C Low Stub3 August 2012... (August 2012), References needed (August 2012), Prose needed (August 2012)
Tsuji–Wilkinson decarbonylation reaction Low Start2 February 2018... (February 2018, February 2018)
Vacuum distillation Low C5 February 2015References needed (February 2015), Reliable references lacking (February 2015), Expansion needed (February 2015), ... (February 2015, February 2015)

Coordinates needed (7)

ArticleImportanceClassCount OldestIssues
Alexander Butlerov Chemistry Institute Low Start4 May 2017In-text citations lacking (May 2017), Reliable references lacking (May 2017), Categories needed (May 2017)
Center for Nanotechnology in Society Low Start1
College of Chemical Sciences Low Stub4 June 2011References needed (June 2011), Conflict of interest (June 2011), Wikilinks needed (January 2015)
Loker Hydrocarbon Research Institute Low Stub3 February 2015References needed (February 2015), Notability unclear (February 2015)
Mușenița gas field Low Stub1
Pâncota oil field Low Stub1
University of Edinburgh School of Chemistry Low Start3 April 2013References needed (April 2013), Unsourced statements (May 2015)

Copy edit needed (1)

ArticleImportanceClassCount OldestIssues
Odor Low Start5 July 2010Unsourced statements (July 2010, November 2010), Links needing disambiguation (July 2017), ... (January 2018), Style editing needed (January 2018)

Expansion needed (96)

ArticleImportanceClassCount OldestIssues
Adolf Windaus Mid Start3 September 2011Unsourced statements (September 2011, August 2017), ... (December 2012)
Alcohol powder Low Start4 April 2014Unsourced statements (February 2016), ... (April 2014), Update needed (February 2016, August 2016)
Alexander Butlerov High Stub1 April 2011... (April 2011)
Alkane Top B4 August 2014... (August 2014, September 2017), Unsourced statements (December 2016), Clarification needed (December 2016)
Alkylpyrazine Low Stub1 April 2016... (April 2016)
Allotropy Low C1 May 2009... (May 2009)
Amalgam (chemistry) Mid Start2 September 2017... (September 2017), References needed (September 2017)
Analytical chemistry Top C4 March 2013Unsourced statements (March 2013, April 2016), Page number citations needed (January 2014), ... (April 2016)
Anodizing Mid Start2 March 2009... (March 2009), Unsourced statements (November 2015)
Aromaticity High B6 January 2014Reliable references lacking (April 2015), Factual verification needed (January 2014, October 2014, April 2015), Unsourced statements (June 2016), ... (April 2015)
Arrow poison Mid C2 March 2014... (March 2014), Unsourced statements (March 2018)
Azadipyrromethene Low Stub2 April 2016... (April 2016), Orphaned (April 2016)
Behavior of nuclear fuel during a reactor accident Low C5 May 2013... (May 2013), Citation with bare URL, Citation lacking title, Dead external links (May 2016, October 2016)
Biomonitoring Mid C6 April 2012Page number citations needed (April 2012), Unsourced statements (April 2016), ... (April 2016), Limited geographic scope (April 2016), Reliable references lacking (April 2016), Vague or ambiguous geographic scope (April 2016)
Bridged compounds Mid Stub7 February 2016Expert attention needed (February 2016), References needed (March 2016), In-text citations lacking (February 2016), ... (March 2016), Cleanup needed (March 2016), List cleanup (March 2016)
Calibration curve Low Start3 October 2008In-text citations lacking (October 2008), Introduction cleanup (November 2017), ... (January 2018)
Carbon-based life Mid Start4 March 2015References needed (March 2015), Unsourced statements (March 2015, April 2015), ... (August 2015)
Carl Duisberg Low Start1 May 2014... (May 2014)
Catalytic reforming Mid C2 May 2014Unsourced statements (May 2014), ... (December 2017)
Center for Computational Chemistry Low Stub2 February 2009Reliable references lacking (February 2009), ... (April 2014)
Chalcogen Mid C5 September 2014Unsourced statements (September 2014, August 2017), ... (September 2014, August 2016), Disputed statements (September 2014)
Charge transfer coefficient Low Start2 October 2011... (October 2011), Unsourced statements (July 2017)
Chemical hazard Mid Start1 June 2017... (June 2017)
Chemurgy Low Start1 September 2008... (September 2008)
Chloride High Start2 March 2012Unsourced statements (March 2012), ... (March 2016)
Christopher Spencer Foote Low Start1 December 2010... (December 2010)
Classical element Mid C4 May 2009References needed (May 2009), Unsourced statements (October 2013, December 2016), ... (December 2016)
Coal gas Low C4 October 2007References needed (June 2009), ... (October 2007), Clarification needed (February 2014), Unsourced statements (April 2018)
Combinatorial chemistry Top Start4 November 2012Unsourced statements (November 2012, June 2014), ... (June 2014), NPOV disputes (June 2014)
Condenser (laboratory) High B4 February 2015Unsourced statements (February 2015), References needed (February 2015), Reliable references lacking (February 2015), ... (February 2015)
Cornforth rearrangement Low Stub2 July 2015Unsourced statements (October 2015), ... (July 2015)
Cyclic compound High Start13 April 2015Expert attention needed (April 2015), Reliable references lacking (April 2015), ... (June 2015, April 2015), References needed (April 2015, June 2015), Unsourced statements (April 2015, June 2015), Clarification needed (April 2015), Page number citations needed (April 2015, June 2015), Factual verification needed (April 2015)
Cyrillization of chemical nomenclature Mid Start3 December 2017References needed (December 2017), ... (December 2017), Accuracy disputes or self-published (December 2017)
Debye–Hückel equation Mid B5 2007Potentially dated statements (2007), Dead external links (December 2016, January 2018), Accuracy disputes or self-published (May 2018), ... (May 2018)
Detergent Mid Start1 January 2015... (January 2015)
Dishwashing liquid Mid C1 January 2015... (January 2015)
Downwards zigzag arrow Low Stub1 November 2017... (November 2017)
Electrochemical cell High Start3 November 2017Sources lacking (November 2017), References needed (November 2017), ... (May 2018)
Enniatin Low Stub2 June 2011Unsourced statements (June 2011), ... (October 2015)
Enol High C8 October 2010Unsourced statements (October 2010, July 2015), Clarification needed (October 2010, July 2015), References needed (July 2015), ... (July 2015), Reliable references lacking (July 2015), Disputed statements (July 2015)
Ethylmercury Low Start5 February 2017... (February 2017), Disputed statements (February 2017), Update needed (February 2017), Factual verification needed (February 2017), Unsourced statements (February 2017)
Gas composition Low Stub1 April 2018... (April 2018)
Gaseous signaling molecules High B4 September 2013Unsourced statements (September 2013, February 2014), Weasel-worded phrases (September 2013), ... (March 2016)
Group 11 element Low Start2 February 2012... (February 2012), References needed (April 2013)
Hans von Euler-Chelpin Mid Stub2 December 2012... (December 2012), Unsourced statements (August 2017)
Headspace gas chromatography for dissolved gas measurement Mid C4 December 2014... (December 2014), Introduction cleanup (December 2014), Orphaned (December 2014), Context needed (December 2014)
Heat capacity ratio Low Start1 June 2008... (June 2008)
Herbal distillate Low Start1 December 2017... (December 2017)
Herbicide High C11 1992Potentially dated statements (1992), References needed (August 2011), Unsourced statements (August 2011, June 2014, January 2015, May 2017), Weasel-worded phrases (July 2010, December 2012), Page number citations needed (January 2013), ... (December 2015), Viewpoints needed (October 2015)
History of the Haber process Mid C3 September 2011... (September 2011), Unsourced statements (October 2017), Disputed statements (October 2017)
Howard Ensign Simmons Jr. Low Stub1 February 2016... (February 2016)
Intermolecular force Top Start2 September 2009... (September 2009), Unsourced statements (November 2017)
International Programme on Chemical Safety Low Stub1 May 2010... (May 2010)
Ion-exchange membranes Low Start1 May 2018... (May 2018)
Italian Chemical Society Low Stub1 February 2015... (February 2015)
Joanna Fowler Mid Start3 November 2012... (December 2012), BLP articles lacking sources (November 2012), In-text citations lacking (November 2012)
Judd–Ofelt theory Mid Stub4 November 2015Expert attention needed (November 2015), ... (November 2015), Orphaned (November 2015)
Lubrication Low Start3 October 2017... (October 2017), Dead external links (January 2018), Unsourced statements (March 2018)
Molecular gyroscope Mid C1 October 2014... (October 2014)
Natural refrigerant Low Stub2 October 2016... (October 2016), References needed (January 2017)
Noble gas compound Mid C9 January 2015Cleanup needed (January 2015, January 2015), References needed (January 2015), ... (January 2015), Reliable references lacking (January 2015), Unsourced statements (January 2015), Weasel-worded phrases (January 2015), Vague or ambiguous time (January 2015), Factual verification needed (January 2015)
Non-stoichiometric compound High C3 July 2015Detailed references needed, Unsourced statements (July 2015), ... (July 2015)
Optical contact bonding Low Start2 December 2009... (December 2009), Dead external links (December 2016)
Orders of magnitude (molar concentration) Low List1 April 2017... (April 2017)
Oxygen scavenger Mid C2 July 2014CS1 errors: dates, ... (July 2014)
Pasteur pipette Low Start1 June 2017... (June 2017)
Petrus Jacobus Kipp Mid Start1 November 2015... (November 2015)
Photochromic lens Low Start1 January 2011... (January 2011)
Photofragment-ion imaging Mid Start2 April 2017Citation lacking title, ... (April 2017)
Phthalate Mid Start3 September 2008Unsourced statements (September 2008, December 2017), ... (December 2009)
Physical chemistry Top C4 February 2007Unsourced statements (February 2007, February 2013), ... (January 2017), Introduction cleanup (January 2017)
Physical organic chemistry High Start7 June 2015... (June 2015), Unsourced statements (June 2015), Reliable references lacking (June 2015), Clarification needed (June 2015), Factual verification needed (June 2015), Page number citations needed (June 2015), References lacking (June 2015)
Plutonium carbide Low Stub1 June 2015... (June 2015)
Polymer brush Low Start2 December 2009References needed (December 2009), ... (March 2013)
Positive pressure personnel suit Low Start3 December 2011... (December 2011), Dead external links (March 2017), References needed (August 2017)
Pyridinecarboxylic acids Low Stub1 July 2017... (July 2017)
Pyrromethene Low Stub2 April 2016... (April 2016), Orphaned (April 2016)
Qualitative inorganic analysis High Start2 February 2013References needed (February 2013), ... (October 2014)
Rare sugar Low Stub2 July 2014Sources lacking (July 2014), ... (September 2015)
Römpp Encyclopedia Natural Products Mid Stub1 August 2015... (August 2015)
Selenonic acid Low Stub2 April 2017References needed (April 2017), ... (April 2017)
Silanes Low Start1 April 2013... (April 2013)
Silanization Low Stub3 July 2007References needed (July 2007), ... (August 2008, January 2011)
Siloxane Mid Start1 April 2015... (April 2015)
Single bond High Start2 July 2012... (July 2012), References needed (August 2012)
Sodium fusion test Low Stub1 August 2016... (August 2016)
Soft chemistry Low Start3 April 2010Original research (April 2010), ... (May 2010), Orphaned (September 2010)
Spin-forbidden reactions Mid Start2 May 2018Reliable references lacking (May 2018), ... (May 2018)
Spiro compound Mid C11 February 2016Unsourced statements (February 2016), Citation with format and no URL, References needed (February 2016), Reliable references lacking (February 2016), ... (February 2016), Self-contradictory articles (February 2016), Clarification needed (February 2016), Factual verification needed (February 2016, March 2016), Cleanup needed (October 2017, October 2017)
Steroid Mid C9 May 2014Expert attention needed (March 2017), Citation with accessdate and no URL, Page number citations needed (May 2014), Reliable references lacking (July 2014, March 2017), Unsourced statements (March 2017), Factual verification needed (March 2017), ... (March 2017)
Substituted phenethylamine Low Start3 August 2014Unsourced statements (February 2016), References needed (August 2014), ... (December 2015)
Superaromaticity Mid Stub1 August 2015... (August 2015)
Thermonuclear weapon Mid C9 September 2009... (September 2009), References needed (August 2013, December 2015), In-text citations lacking (August 2013), Reliable references lacking (October 2014, December 2016), Unsourced statements (January 2016, October 2017, November 2017)
Toxic unit Unknown Start2 March 2018... (March 2018), Orphaned (March 2018)
Vacuum distillation Low C5 February 2015References needed (February 2015), Reliable references lacking (February 2015), ... (February 2015), Cleanup needed (February 2015, February 2015)
X-ray absorption spectroscopy Low Start3 February 2012Unsourced statements (February 2012), References needed (February 2015), ... (July 2017)

Incomplete lists (18)

ArticleImportanceClassCount OldestIssues
Base anhydride High Stub1 January 2014... (January 2014)
Comparison of DNA melting prediction software Low List2 May 2018... (May 2018), Obsolete information (May 2018)
Glenn T. Seaborg bibliography Low List2 November 2012References needed (November 2012), ... (November 2012)
Inorganic compounds by element Low List3 August 2008... (August 2008, October 2017), References needed (October 2017)
List of Russian chemists Mid List1 February 2011... (February 2011)
List of alchemical substances Low List2 August 2008... (August 2008), References needed (August 2016)
List of blue plaques erected by the Royal Society of Chemistry Low List1 January 2015... (January 2015)
List of coffee chemicals Low List2 June 2014Orphaned (June 2014), ... (September 2016)
List of dyes Low List1 January 2018... (January 2018)
List of named inorganic compounds Low List1 June 2015... (June 2015)
List of naturally occurring tryptamines Low List2 August 2008... (August 2008), References needed (November 2014)
List of photochemists Low List1 October 2013... (October 2013)
List of phytochemicals in food Low List1 August 2008... (August 2008)
List of scientific constants named after people Low List1 May 2012... (May 2012)
List of superconductors Mid List1 May 2018... (May 2018)
Nina Fedoroff Low Start1 December 2016... (December 2016)
Polymer chemistry Mid Start1 July 2012... (July 2012)
Pseudohalogen Mid Stub1 September 2014... (September 2014)

Introduction cleanup (53)

ArticleImportanceClassCount OldestIssues
Ab initio quantum chemistry methods Mid C2 October 2013Unsourced statements (October 2013), ... (March 2015)
Adam S. Veige Low Start2 January 2012... (January 2012), Orphaned (December 2012)
Atoms in molecules Mid Start2 July 2017Context needed (July 2017), ... (July 2017)
Ballistic conduction in single-walled carbon nanotubes Low Start5 April 2011Expert attention needed (May 2011), ... (April 2011, May 2014), Context needed (April 2011)
Bancroft rule Mid Start2 October 2009... (October 2009), Context needed (October 2009)
CDw17 antigen Low Stub2 March 2009... (March 2009), Context needed (March 2009)
Calibration curve Low Start3 October 2008In-text citations lacking (October 2008), ... (November 2017), Expansion needed (January 2018)
Chemical industry Mid Start5 June 2008References needed (June 2009), Unsourced statements (June 2008, May 2010), Weasel-worded phrases (November 2010), ... (December 2015)
Chlorographene Low Start3 November 2012... (November 2012), Context needed (November 2012), Clarification needed (May 2015)
Chromatography in blood processing Low Start4 September 2008In-text citations lacking (April 2009, September 2008), Original research (September 2008), ... (April 2013)
Extraction (chemistry) Mid Start5 May 2011References needed (May 2011), Cleanup needed (May 2014, May 2014, June 2015), ... (May 2014)
FreeON Low Stub3 June 2010... (June 2010), Context needed (June 2010), Orphaned (January 2011)
GM3 Low Stub2 August 2014... (August 2014), Context needed (August 2014)
Germar Rudolf Low Stub4 October 2015BLP articles lacking sources (October 2015), Reliable references lacking (October 2015), Factual verification needed (October 2015), ... (October 2015)
Headspace gas chromatography for dissolved gas measurement Mid C4 December 2014Expansion needed (December 2014), ... (December 2014), Orphaned (December 2014), Context needed (December 2014)
Heteroatom Low Stub2 April 2016... (April 2016), Context needed (April 2016)
Immobilized pH gradient Low Stub2 October 2009... (October 2009), Context needed (October 2009)
Intrinsic Noise Analyzer Low Stub5 July 2012Expert attention needed (July 2012), Context needed (July 2012), ... (July 2012), References needed (July 2012)
Job plot Low Start2 October 2009... (October 2009), Context needed (October 2009)
Johann Rudolf Glauber Mid Start2 November 2016... (November 2016), Dead external links (November 2017)
Joseph J. Katz Mid Start3 September 2012... (September 2012), Reference cleanup (September 2012), In-text citations lacking (November 2014)
Marine pharmacognosy Low Start2 March 2018Style editing needed (March 2018), ... (March 2018)
Molecular probe Low Stub2 October 2009... (October 2009), Context needed (October 2009)
Molten-salt battery Low C6 July 2009Unsourced statements (July 2009, December 2014, January 2015, June 2016), ... (May 2015), Reliable references lacking (August 2016)
Narrow-range ethoxylate Mid Start5 July 2009... (July 2009), Context needed (July 2009), Expert attention needed (September 2012), Merge needed (September 2017)
Nik operon Low Start4 November 2013Reliable references lacking (December 2013), Orphaned (November 2013), Notability unclear (December 2013), ... (December 2013)
Organic molecular tracers Low Start6 December 2009Expert attention needed (December 2009), ... (December 2009), Context needed (December 2009), Orphaned (April 2010), Too technical (December 2009)
Organostannane addition Mid C3 June 2010... (June 2010), Context needed (June 2010), Merge needed (December 2017)
Paper chemicals Low Start2 September 2015References needed (September 2015), ... (September 2015)
Phase-change material Low Start3 September 2012... (September 2012), Citation with bare URL, Citation lacking title
Physical chemistry Top C4 February 2007Unsourced statements (February 2007, February 2013), Expansion needed (January 2017), ... (January 2017)
Platinum black Low C2 March 2014Unsourced statements (March 2014), ... (March 2014)
Preferential alignment Low Stub4 January 2009Sources lacking (January 2009), ... (October 2009), Context needed (October 2009), Unsourced statements (December 2016)
Reagent High Start2 July 2017... (July 2017), Sections needed (July 2017)
Robert H. Christenson Low Stub5 November 2013Reliable references lacking (November 2013), Orphaned (June 2016), Context needed (March 2018), ... (March 2018), Vague or ambiguous time (March 2018)
Roskamp reaction Low Start4 May 2017Orphaned (May 2017), ... (October 2017), Style editing needed (October 2017), References needed (October 2017)
Sequence-defined polymer Unknown Start2 February 2018... (February 2018), Context needed (February 2018)
Sequential structure alignment program Low Stub2 November 2009Context needed (November 2009), ... (November 2009)
Sequential walking Low Stub3 October 2009Sources lacking (December 2009), ... (October 2009), Context needed (October 2009)
Silanization of silicon and mica Low Start4 August 2012Expert attention needed (August 2012), ... (August 2012), Too technical (August 2012)
Smart polymer Low Stub4 September 2009Expert attention needed (September 2009), References needed (March 2013), ... (March 2013)
Solid phase extraction Low Start1 May 2014... (May 2014)
Stability constants of complexes High C2 February 2015... (February 2015), Context needed (February 2015)
Staggered conformation Low Stub2 March 2011... (March 2011), Context needed (March 2011)
Steric exclusion Low Stub2 March 2011... (March 2011), Context needed (March 2011)
Tetraanthraporphyrin Low Start4 February 2014Unsourced statements (February 2014), ... (February 2014), Weasel-worded phrases (February 2014), Context needed (February 2014)
Thermodynamics of micellization Low C5 June 2012Expert attention needed (June 2012), Context needed (June 2012), ... (June 2012), Too technical (June 2012)
UK Molecular R-matrix Codes Low Stub6 January 2018Expert attention needed (January 2018), Context needed (January 2018), Too technical (January 2018), Clarification needed (January 2018), ... (January 2018)
Valerie Ashby Low Start6 April 2016... (April 2016), Promotional tone (April 2016), Reliable references lacking (April 2016), BLP articles lacking sources (August 2016), Unsourced statements (April 2018), References needed (April 2018)
Water softening Mid Start3 March 2015Unsourced statements (March 2015), ... (November 2016), References needed (March 2018)
X-ray Photon Correlation Spectroscopy Low Stub6 August 2017Expert attention needed (August 2017), Context needed (August 2017), ... (August 2017), Reorganization needed (August 2017), Too technical (August 2017)
ZACA reaction Low Stub3 March 2017Citation lacking title, Context needed (March 2017), ... (March 2017)
Σ-bishomoaromaticity Low Stub2 June 2017... (June 2017), Context needed (June 2017)

List cleanup (4)

ArticleImportanceClassCount OldestIssues
Breakthrough of the Year Low List4 December 2012Unsourced statements (December 2012), Cleanup needed (December 2016), Tables needed (December 2016), ... (December 2016)
Bridged compounds Mid Stub7 February 2016Expert attention needed (February 2016), References needed (March 2016), In-text citations lacking (February 2016), Expansion needed (March 2016), Cleanup needed (March 2016), ... (March 2016)
Fluorophore Mid Start2 February 2016Cleanup needed (February 2016), ... (February 2016)
Molecule editor Low List2 August 2013Cleanup needed (August 2013), ... (August 2013)

Merge needed (36)

ArticleImportanceClassCount OldestIssues
Acidic oxide High Stub2 March 2015Clarification needed (March 2015), ... (June 2017)
Alkadiene Mid Stub1 November 2017... (November 2017)
Allylic stannane addition Low C2 November 2011Orphaned (November 2011), ... (December 2017)
Carbon sequestration Mid C9 August 2009Unsourced statements (August 2009, September 2010, January 2011, March 2015), Reliable references lacking (August 2015), Dead external links (June 2016, November 2016, January 2017), ... (April 2018)
Chemical bonding of H2O Mid Start2 May 2017... (May 2017), Unsourced statements (January 2018)
Chemical transformation Low Stub2 December 2009Sources lacking (December 2009), ... (December 2016)
Chiral ligand Mid C1 December 2017... (December 2017)
Commodity chemicals Mid Start1 April 2018... (April 2018)
Doré bullion Low Stub2 June 2007Sources lacking (June 2007), ... (March 2018)
Entropy (energy dispersal) Low C4 June 2013Unsourced statements (June 2013, March 2018), Accuracy disputes or self-published (June 2013), ... (May 2018)
Fractional crystallization (chemistry) Mid Stub1 February 2018... (February 2018)
Hard-surface cleaner Low Stub1 August 2017... (August 2017)
High production volume chemicals Mid C3 2009Potentially dated statements (2009), URL error, ... (April 2018)
Inorganic anhydride Mid Stub2 June 2017Sources lacking (June 2017), ... (June 2017)
Iodane Mid C1 September 2017... (September 2017)
Laws of science High Start2 February 2008References needed (February 2008), ... (May 2018)
Match Mid C3 June 2017Dead external links (June 2017, December 2017), ... (May 2018)
Metal aquo complex Mid Start1 June 2017... (June 2017)
Metal ions in aqueous solution High C1 June 2017... (June 2017)
Nanoparticle High C3 April 2015Citation with format and no URL, Unsourced statements (April 2015), ... (September 2017)
Narrow-range ethoxylate Mid Start5 July 2009Introduction cleanup (July 2009), Context needed (July 2009), Expert attention needed (September 2012), ... (September 2017)
Oleochemical High Start1 November 2017... (November 2017)
Oleochemistry Low Stub1 November 2017... (November 2017)
Organostannane addition Mid C3 June 2010Introduction cleanup (June 2010), Context needed (June 2010), ... (December 2017)
Particle segregation Low Start2 August 2011References needed (August 2011), ... (March 2017)
Periodinane Mid C1 September 2017... (September 2017)
Plant stanol ester Low C3 March 2012Unsourced statements (March 2012, May 2012), ... (October 2017)
Polycide Low Stub2 December 2009Sources lacking (December 2009), ... (April 2017)
Quantemol-DB Low Start7 April 2017Conflict of interest (April 2017), Peacock terms (April 2017), Reference cleanup (April 2017), Unsourced statements (July 2017), ... (July 2017), Weasel-worded phrases (July 2017), Clarification needed (July 2017)
Rayon Low C4 May 2016Unsourced statements (May 2016, June 2016, April 2017), ... (July 2017)
Recrystallization (chemistry) High C2 October 2009References needed (October 2009), ... (February 2018)
Red mud Low Start1 October 2017... (October 2017)
Retrogradation (starch) Low Stub1 April 2018... (April 2018)
Semi-rigid molecule Mid Start2 December 2010In-text citations lacking (December 2010), ... (May 2017)
Spectrograph Low Start1 February 2018... (February 2018)
Transition metal pincer complex Low Start1 May 2018... (May 2018)

Notability unclear (61)

ArticleImportanceClassCount OldestIssues
ACS Award in Pure Chemistry Low List2 February 2018References needed (February 2018), ... (February 2018)
ALTR Created Diamonds Unknown Start1 March 2018... (March 2018)
Al-Ca composite Low Start1 August 2017... (August 2017)
Anais da Associação Brasileira de Química Low Stub2 July 2015... (July 2015), Sources lacking (October 2016)
Anticrystal Low Stub2 July 2014References needed (July 2014), ... (August 2017)
Aron Kuppermann Low Stub1 January 2011... (January 2011)
Arthur C. Cope Award Mid List2 February 2018References needed (February 2018), ... (February 2018)
Australasian Corrosion Association Low Stub2 April 2017... (April 2017), References needed (July 2017)
BKChem Low Stub3 August 2011Reliable references lacking (August 2011), Weasel-worded phrases (January 2014), ... (May 2015)
Beader Unknown Unassessed4 December 2009Sources lacking (December 2009), Expert attention needed (July 2017), ... (July 2017)
Calibration gas Low Stub2 June 2013References needed (June 2013), ... (June 2013)
Charles E. Wicks Low Start2 July 2010References needed (July 2010), ... (July 2010)
ChemPubSoc Europe Low Start1 March 2015... (March 2015)
Conductive characteristics in coated synthetic fabrics Low Stub3 October 2010References needed (December 2011), ... (December 2011), Orphaned (October 2010)
Dalton (program) Low Stub1 March 2016... (March 2016)
Debra R. Rolison Low Start2 June 2017Orphaned (June 2017), ... (June 2017)
EOn Low Stub1 October 2012... (October 2012)
Elizabeth Hardy (chemist) Low Stub1 June 2017... (June 2017)
Flamelet generated manifold Low Stub5 August 2014References needed (August 2014), Clarification needed (November 2015), ... (November 2015), Conflict of interest (November 2015), Disputed statements (November 2015)
Flory–Schulz distribution Low Stub1 March 2013... (March 2013)
HORTON (software) Low Stub3 June 2015Sources lacking (June 2015), ... (June 2015), Promotional tone (June 2015)
Instrumentation in petrochemical industries Mid C1 November 2009... (November 2009)
International Year of Crystallography Low Stub3 January 2014... (January 2014), References needed (January 2014), CS1 errors: external links
Isofuran Low Stub1 September 2016... (September 2016)
Jaguar (software) Low Stub2 October 2013... (October 2013), Promotional tone (October 2013)
Jahres-Bericht über die Fortschritte der chemischen Technologie für Fabrikanten, Chemiker, Pharmaceuten, Hütten- und Forstleute und Cameralisten Low Stub4 October 2013Wikilinks needed (December 2013), Orphaned (October 2013), ... (September 2016), Sources lacking (September 2016)
James T. Grady-James H. Stack Award for Interpreting Chemistry Unknown Unassessed2 February 2018References needed (February 2018), ... (February 2018)
Jay Switzer (chemist) Low Stub3 January 2018Reliable references lacking (January 2018), BLP articles lacking sources (January 2018), ... (January 2018)
Jeehiun Lee Low Stub5 February 2009Orphaned (February 2009), BLP articles lacking sources (November 2012), Reliable references lacking (November 2012), ... (November 2012), Dead external links (March 2018)
Jeffrey E. Dick Low Start2 April 2018Orphaned (April 2018), ... (April 2018)
Kenneth Karlin (chemist) Low Start6 May 2018BLP articles lacking sources (May 2018), ... (May 2018), Categories needed (May 2018), Orphaned (May 2018), Dead external links (May 2018), Unsourced statements (May 2018)
Kintech Lab Low Start2 September 2009... (September 2009), References needed (September 2009)
Ligand dependent pathway Low Stub2 January 2012Sources lacking (January 2012), ... (January 2012)
Linus Pauling Award Low List1 January 2016... (January 2016)
List of JWH cannabinoids Low List3 May 2018... (May 2018), Cleanup needed (May 2018, May 2018)
List of gasoline additives Mid List1 August 2012... (August 2012)
List of inorganic reactions Mid List2 September 2011Sources lacking (September 2011), ... (September 2011)
Loker Hydrocarbon Research Institute Low Stub3 February 2015Coordinates needed, References needed (February 2015), ... (February 2015)
MOLCAS Low Start2 November 2012Reliable references lacking (November 2012), ... (November 2012)
Maurizio Prato (scientist) Low Start2 October 2016Conflict of interest (October 2016), ... (October 2016)
Molbank Low Stub1 August 2016... (August 2016)
Molden Low Stub2 April 2012Reliable references lacking (April 2012), ... (April 2012)
Molekel Low Stub2 April 2012Reliable references lacking (April 2012), ... (April 2012)
Morten P. Meldal Low Start2 March 2009... (March 2009), Autobiographical articles (November 2013)
Nik operon Low Start4 November 2013Reliable references lacking (December 2013), Orphaned (November 2013), ... (December 2013), Introduction cleanup (December 2013)
Noel L. Owen Low Stub1 January 2010... (January 2010)
OLI Analyzer Low Stub2 April 2009... (April 2009), Orphaned (January 2011)
PJ1 TrackBite Low Start4 February 2009References needed (February 2009), Unsourced statements (April 2010), Reliable references lacking (October 2015), ... (October 2015)
PRO/II Low Stub2 August 2009... (August 2009), Promotional tone (January 2012)
PSI (computational chemistry) Low Stub2 April 2011References needed (September 2014), ... (April 2011)
Pan Africa Chemistry Network Low Stub1 March 2015... (March 2015)
Pekka Pyykkö Low Stub1 June 2017... (June 2017)
Phenol-Explorer Low Stub2 May 2018... (May 2018), Reliable references lacking (May 2018)
Revista Brasileira de Química Low Stub2 July 2015... (July 2015), Sources lacking (October 2016)
Rhondite Low Stub1 June 2009... (June 2009)
Salt extraction process Low Start1 January 2011... (January 2011)
SiGNa chemistry Low Stub1 April 2014... (April 2014)
Synthesizing unit Low Start2 May 2009... (May 2009), Wikilinks needed (November 2013)
Tullio Ilomets Low Start2 April 2017... (April 2017), BLP articles lacking sources (April 2017)
Water substance Low Stub2 June 2011... (June 2011), Sources lacking (June 2011)
XDrawChem Low Stub2 November 2012Reliable references lacking (November 2012), ... (November 2012)

Obsolete information (3)

ArticleImportanceClassCount OldestIssues
Comparison of DNA melting prediction software Low List2 May 2018Incomplete lists (May 2018), ... (May 2018)
Peptide synthesis High C9 November 2016... (November 2016), Unsourced statements (November 2016, January 2018, May 2018), Reliable references lacking (November 2016), Original research (November 2016), Factual verification needed (November 2016), References needed (November 2016, June 2017)
Trans fat Mid B12 September 2010Unsourced statements (May 2014, September 2015, April 2013, June 2015, April 2017), Update needed (September 2010), ... (March 2012), Vague or ambiguous geographic scope (September 2012), Citation with format and no URL, Dead external links (September 2017, January 2018), Reliable references lacking (November 2017)

Potentially dated statements (66)

ArticleImportanceClassCount OldestIssues
Aerogel High B2 May 2013... (2013), References needed (May 2013)
Aerographene Low Stub1 March 2013... (March 2013)
Anthocyanin Mid B1 2017... (2017)
Battery (electricity) Mid C6 December 2010... (2012, 2017), Unsourced statements (December 2010), References needed (April 2017), Dead external links (June 2017, July 2017)
Burkhard Rost Low Start4 2011... (2011), Unsourced statements (February 2013, March 2015, November 2017)
Casomorphin Mid Start2 August 2008References needed (August 2008), ... (2008)
Catalyst Science Discovery Centre Low C2 August 2015... (2015), Unsourced statements (August 2015)
Chemical Reviews Low Stub1 January 2015... (January 2015)
Chemical vapor deposition Mid C2 October 2010... (2010), Unsourced statements (October 2010)
Chemical weapon Mid C6 July 2012... (2017, 2016, June 2016), Unsourced statements (July 2012, April 2017), Limited geographic scope (December 2012)
Corticosteroid Low C3 2010... (2010), Expert attention needed (January 2018)
Crystal High B3 1999... (1999), References needed (September 2016), Unsourced statements (June 2017)
Cyanoacrylate Mid C8 July 2013Unsourced statements (July 2013, September 2015, December 2015, April 2018), ... (2013), Web citation with no URL, Dead external links (May 2016), References needed (December 2017)
Debye–Hückel equation Mid B5 2007... (2007), Dead external links (December 2016, January 2018), Accuracy disputes or self-published (May 2018), Expansion needed (May 2018)
Drano Low Start2 August 2015... (2016), Unsourced statements (August 2015)
Eleftheria Zeggini Mid Start1 2015... (2015)
Extended periodic table Low B7 April 2011Expert attention needed (December 2011), Unsourced statements (February 2012), ... (April 2011), Weasel-worded phrases (October 2011, May 2018), Dead external links (October 2016)
Firefighting foam Mid Start3 February 2015Detailed references needed, ... (2017), Promotional tone (February 2015)
Fraser Stoddart High C1 2016... (2016)
Frederick Sanger Mid B2 November 2013... (2015), Vague or ambiguous time (November 2013)
Fuel cell Mid B4 September 2010Dead external links (September 2010), ... (August 2011, December 2016), Failed verification (February 2012)
Gloria Long Anderson Low Start1 2009... (2009)
Hazardous Substances Data Bank Low Start1 November 2014... (November 2014)
Herbicide High C11 1992... (1992), References needed (August 2011), Unsourced statements (August 2011, June 2014, January 2015, May 2017), Weasel-worded phrases (July 2010, December 2012), Page number citations needed (January 2013), Expansion needed (December 2015), Viewpoints needed (October 2015)
High production volume chemicals Mid C3 2009... (2009), URL error, Merge needed (April 2018)
Hypothetical types of biochemistry Low Start5 1998... (1998), Unsourced statements (January 2012, February 2014), CS1 errors: external links, References needed (December 2017)
Inorganic Crystal Structure Database Low Stub1 2013... (2013)
John Boland (chemist) Low Stub1 2017... (2017)
John E. Walker Low Start2 October 2015Unsourced statements (October 2015), ... (2015)
Journal of Biological Chemistry Mid Start1 2017... (2017)
Journal of Magnetic Resonance Low Stub1 2016... (2016)
Justus von Liebig Top C1 2014... (2014)
Lithium-ion battery Low C16 June 2010Detailed references needed, ... (2017, January 2014, 2016), Disputed statements (June 2010), Unsourced statements (June 2014, September 2016, October 2017, February 2018), Dead external links (November 2015), Reliable references lacking (August 2014, November 2016), Failed verification (November 2013, February 2016, December 2016, February 2018)
Lodewijk van den Berg Low GA2 2014... (2014), Dead external links (November 2017)
Methane clathrate Mid C5 September 2010Unsourced statements (September 2010, October 2011, February 2014, June 2017), ... (2013)
Mischmetal Low C2 2007... (2007), In-text citations lacking (April 2012)
Mole (unit) Top C4 June 2011... (2017, 2011), Unsourced statements (June 2011, October 2016)
Molecular modeling on GPUs Mid Start1 2016... (2016)
Neonicotinoid Low C8 2013... (2013, 2014), Unsourced statements (March 2015, February 2018, April 2018), Vague or ambiguous geographic scope (March 2015), Clarification needed (September 2016), Dead external links (April 2018)
Nickel–metal hydride battery Low C4 2005... (2005), References needed (July 2015), Clarification needed (January 2013), Unsourced statements (June 2015)
Nuclear magnetic resonance spectroscopy High B2 2003... (2003), In-text citations lacking (November 2016)
Organochloride High C1 2004... (2004)
Organofluorine chemistry Mid B1 2008... (2008)
Organogels Low Start1 2014... (2014)
Outline of physical science Low Start2 March 2014... (2014), Unsourced statements (March 2014)
Perfluorinated compound Mid List4 2010... (2010), References needed (August 2015), Cleanup needed (September 2015), Prose needed (September 2015)
Periodic table Top FA3 2016Citation with accessdate and no URL, ... (2016), Unsourced statements (May 2018)
Preferred IUPAC name Mid Start2 May 2010... (May 2010), Update needed (September 2016)
Primordial nuclide Low Start1 2013... (2013)
Protein High GA1 2017... (2017)
Registration, Evaluation, Authorisation and Restriction of Chemicals Low Start3 April 2012Unsourced statements (April 2012), ... (June 2015), Dead external links (April 2018)
School of Chemistry, University of Manchester Low Start1 2017... (2017)
Shale oil extraction Low FA1 2010... (2010)
Sharon Hammes-Schiffer Mid Stub1 January 2015... (January 2015)
Society of Chemical Industry (American Section) Mid C1 2017... (2017)
Société de Chimie Industrielle (American Section) Low Start1 2016... (2016)
Steven V. Ley Mid Start3 December 2015... (2015), Unsourced statements (December 2015), Vague or ambiguous time (December 2015)
Superionic water Low Start1 2013... (2013)
Synthetic diamond Mid FA2 2012... (2012, January 2017)
Tetrahedron (journal) Mid Start1 June 2013... (June 2013)
Tide (brand) Low Start3 January 2013Unsourced statements (September 2013), ... (January 2013), References needed (March 2018)
Toxic Substances Control Act of 1976 Mid Start6 July 2013Unsourced statements (July 2013, April 2016), ... (2015), Reference errors, Reliable references lacking (April 2016), Dead external links (December 2017)
Unimolecular rectifier Low Start1 2012... (2012)
Vitamin D Mid B1 November 2010... (November 2010)
Water splitting Low C6 2005... (2005), Unsourced statements (February 2007, November 2017), Citation with bare URL, Citation lacking title, Dead external links (December 2017)
Web of Science Low C1 September 2014... (September 2014)

Prose needed (12)

ArticleImportanceClassCount OldestIssues
Carbocyclic nucleoside Low C2 May 2016Cleanup needed (May 2016), ... (May 2016)
Chemical test Mid List3 February 2016Cleanup needed (February 2016), ... (February 2016), References needed (June 2017)
Cosmochemistry Low Start3 January 2017... (January 2017), Slanted towards recent events (January 2017), Cleanup needed (January 2017)
Gas chromatography ion detector Low Stub3 September 2008... (September 2008), Cleanup needed (September 2008), Sources lacking (June 2012)
Perfluorinated compound Mid List4 2010Potentially dated statements (2010), References needed (August 2015), Cleanup needed (September 2015), ... (September 2015)
Roy A. Periana Low Start4 July 2012Vague or ambiguous time (July 2012), Cleanup needed (July 2012), ... (July 2012), Promotional tone (August 2014)
Schrödinger equation High B5 January 2014Unsourced statements (September 2015, January 2014, May 2018), ... (October 2016), Cleanup needed (October 2016)
Smouldering Low C3 February 2009... (February 2009), Cleanup needed (February 2009), Unsourced statements (January 2015)
Solution Top C2 June 2014Cleanup needed (June 2014), ... (June 2014)
Spectroscopy Top B4 April 2016Citation with format and no URL, References needed (April 2016), Cleanup needed (April 2016), ... (April 2016)
Surfactant Mid C4 January 2011Unsourced statements (January 2011, April 2016), Cleanup needed (August 2013), ... (August 2013)
Titanium Beta C Low Stub3 August 2012Cleanup needed (August 2012), References needed (August 2012), ... (August 2012)

Reorganization needed (3)

ArticleImportanceClassCount OldestIssues
Pyrotechnic composition Low List1 April 2017... (April 2017)
Soni Oyekan Low Stub1 May 2014... (May 2014)
X-ray Photon Correlation Spectroscopy Low Stub6 August 2017Expert attention needed (August 2017), Context needed (August 2017), Introduction cleanup (August 2017), ... (August 2017), Too technical (August 2017)

Split needed (1)

ArticleImportanceClassCount OldestIssues
Total organic carbon Mid Start6 January 2009References needed (January 2009, April 2012), Unsourced statements (April 2012, August 2013), Clarification needed (November 2016), ... (September 2017)

Style editing needed (35)

ArticleImportanceClassCount OldestIssues
Copper-free click chemistry Low Start1 October 2011... (October 2011)
Crystallographic image processing Low Start1 August 2016... (August 2016)
Diabatic Low C2 January 2011Clarification needed (January 2011), ... (April 2013)
Electroless nickel Mid Start1 May 2015... (May 2015)
Electrolytic cell Low Start3 December 2009Sources lacking (December 2009), Original research (November 2017), ... (November 2017)
Elimination reaction of free radicals Mid Start5 October 2017Expert attention needed (October 2017), Too technical (October 2017), ... (October 2017), References needed (October 2017)
Globally Harmonized System of Classification and Labelling of Chemicals Mid Start7 May 2008... (May 2008), In-text citations lacking (September 2013), Dead external links (September 2016), Vague or ambiguous time (February 2017), Unsourced statements (February 2017), Weasel-worded phrases (February 2017), References needed (February 2017)
Gravimetric analysis Mid Start1 September 2013... (September 2013)
Halogen bond Mid Start1 August 2013... (August 2013)
Hammett equation Mid Start11 June 2015Unsourced statements (June 2015), ... (June 2015), Update needed (June 2015), References needed (June 2015), Reliable references lacking (June 2015), Cleanup needed (June 2015, June 2015), Clarification needed (June 2015), Factual verification needed (June 2015), Page number citations needed (June 2015), References lacking (June 2015)
Inorganic compound High Start3 June 2014Unsourced statements (March 2016), ... (June 2014), Original research (June 2014)
Marine pharmacognosy Low Start2 March 2018... (March 2018), Introduction cleanup (March 2018)
Matthew Linford Low Start4 April 2012BLP articles lacking sources (April 2012), ... (April 2012), External link cleanup (December 2012), Spam cleanup (December 2012)
Micellar liquid chromatography Low Start1 September 2008... (September 2008)
Monolithic HPLC column Low Start6 January 2011... (January 2011), Unsourced statements (April 2015), BLP articles lacking sources (June 2014), Original research (June 2014), Dead external links (April 2015), Reliable references lacking (September 2015)
Newbery–Vautin chlorination process Low Stub1 December 2017... (December 2017)
Niosome Low Start2 August 2010... (August 2010), Copied and pasted articles and sections with url provided (October 2016)
Odor Low Start5 July 2010Unsourced statements (July 2010, November 2010), Links needing disambiguation (July 2017), Copy edit needed (January 2018), ... (January 2018)
Particle size analysis Low Start2 January 2012Sources lacking (January 2012), ... (January 2012)
Patternation Low Start1 March 2014... (March 2014)
Periodic systems of small molecules Low Start2 October 2010... (October 2010), Reliable references lacking (July 2011)
Periodic trends Mid C2 June 2007References needed (June 2007), ... (November 2015)
Phenol extraction Low Start3 April 2014Dead external links (April 2014), ... (April 2014), References needed (February 2015)
Polyolester Low Start2 July 2011Unsourced statements (July 2011), ... (July 2011)
Powder coating on glass Low Start2 February 2014... (February 2014), In-text citations lacking (February 2014)
Roskamp reaction Low Start4 May 2017Orphaned (May 2017), Introduction cleanup (October 2017), ... (October 2017), References needed (October 2017)
S. Mageswaran Low Start5 March 2018In-text citations lacking (March 2018), ... (March 2018), Close paraphrasing (March 2018), Cleanup needed (March 2018), Unsourced statements (March 2018)
Safety data sheet High C2 February 2014Unsourced statements (February 2014), ... (March 2017)
Static fatigue Mid Start4 June 2017Orphaned (June 2017), Reliable references lacking (September 2017), Categories needed (September 2017), ... (September 2017)
Substitution of dangerous chemicals Mid Stub2 April 2017In-text citations lacking (April 2017), ... (April 2017)
Symbiosis (chemical) Low Start2 September 2009... (September 2009), Conflict of interest (September 2009)
Systems chemistry Mid Start1 October 2017... (October 2017)
Uniaxial crystal Low Stub3 September 2009Sources lacking (September 2009), ... (September 2009), Clarification needed (September 2009)
Wet nanotechnology Low Start4 May 2012... (May 2012), Original research (May 2012), Citation with bare URL, Citation lacking title
Wiswesser's rule Mid Stub4 February 2009Expert attention needed (February 2009), Sources lacking (July 2014), ... (November 2015)

Translation cleanup needed (1)

ArticleImportanceClassCount OldestIssues
Varrentrapp reaction Low Start3 July 2015Expert attention needed (July 2015)

Update needed (19)

ArticleImportanceClassCount OldestIssues
Alcohol powder Low Start4 April 2014Unsourced statements (February 2016), Expansion needed (April 2014), ... (February 2016, August 2016)
Asphalt Low C3 June 2014... (June 2014), Unsourced statements (January 2016), Clarification needed (June 2017)
CarbFix Low Start2 April 2016... (April 2016), Dead external links (November 2016)
Dan Shechtman High C4 October 2011Unsourced statements (October 2011, December 2014), Vague or ambiguous time (October 2011), ... (June 2014)
Depleted uranium Low B3 November 2011Unsourced statements (November 2011, April 2015), ... (August 2015)
Ethylmercury Low Start5 February 2017Expansion needed (February 2017), Disputed statements (February 2017), ... (February 2017), Factual verification needed (February 2017), Unsourced statements (February 2017)
Gasoline Mid B14 June 2009Clarification needed (June 2009, January 2015, July 2016, August 2016), Unsourced statements (September 2014, April 2016, June 2015, August 2016, October 2016, May 2017, February 2018), ... (April 2016), Dead external links (January 2017, August 2017)
H. C. Ørsted Medal Low Stub2 August 2007Reliable references lacking (August 2007), ... (March 2018)
Hammett equation Mid Start11 June 2015Unsourced statements (June 2015), Style editing needed (June 2015), ... (June 2015), References needed (June 2015), Reliable references lacking (June 2015), Cleanup needed (June 2015, June 2015), Clarification needed (June 2015), Factual verification needed (June 2015), Page number citations needed (June 2015), References lacking (June 2015)
High-level radioactive waste management Low GA2 May 2016CS1 errors: dates, ... (May 2016)
IUPAC nomenclature of organic chemistry High Start3 January 2012Unsourced statements (January 2012), Clarification needed (February 2016), ... (November 2017)
Lithium iron phosphate battery Mid Start9 April 2010Unsourced statements (April 2010, December 2010, February 2012, April 2013, February 2014, April 2016), ... (June 2014), References needed (June 2014), Dead external links (January 2018)
Methylene group Low Stub2 January 2017... (January 2017), References needed (September 2017)
Organometallics Low Stub1 February 2015... (February 2015)
Petroleum Mid B10 July 2010Detailed references needed, Unsourced statements (January 2013, November 2010, January 2015, March 2018), Failed verification (July 2010, March 2018), ... (April 2016, October 2017), References needed (October 2016)
Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy Low Stub2 March 2018Reliable references lacking (March 2018), ... (March 2018)
Preferred IUPAC name Mid Start2 May 2010Potentially dated statements (May 2010), ... (September 2016)
Substance of very high concern Low Start1 October 2014... (October 2014)
Trans fat Mid B12 September 2010Unsourced statements (May 2014, September 2015, April 2013, June 2015, April 2017), ... (September 2010), Obsolete information (March 2012), Vague or ambiguous geographic scope (September 2012), Citation with format and no URL, Dead external links (September 2017, January 2018), Reliable references lacking (November 2017)

Weasel words (3)

ArticleImportanceClassCount OldestIssues
DNA computing Low C4 June 2015Unsourced statements (June 2015), Dead external links (July 2015), Peacock terms (September 2015), ... (September 2015)
Organic compound Top Start1 August 2017... (August 2017)
R-407c Low Stub1 August 2015... (August 2015)

General

1911 Britannica articles needing updates (1)

ArticleImportanceClassCount OldestIssues
Quercitron Low Stub1 February 2016... (February 2016)

Categories needed (9)

ArticleImportanceClassCount OldestIssues
Alexander Butlerov Chemistry Institute Low Start4 May 2017Coordinates needed, In-text citations lacking (May 2017), Reliable references lacking (May 2017), ... (May 2017)
Chemically inert Low Start2 August 2017Sources lacking (August 2017), ... (August 2017)
Field effect (chemistry) Unknown C1 March 2018... (March 2018)
Gelation Low Start1 December 2017... (December 2017)
Hydration number Low Start1 March 2018... (March 2018)
Hydrophosphination Low Start1 March 2017... (March 2017)
Kenneth Karlin (chemist) Low Start6 May 2018BLP articles lacking sources (May 2018), Notability unclear (May 2018), ... (May 2018), Orphaned (May 2018), Dead external links (May 2018), Unsourced statements (May 2018)
Solvated metal atom dispersion Unknown Stub2 April 2018Orphaned (April 2018), ... (April 2018)
Static fatigue Mid Start4 June 2017Orphaned (June 2017), Reliable references lacking (September 2017), ... (September 2017), Style editing needed (September 2017)

Close paraphrasing (2)

ArticleImportanceClassCount OldestIssues
Mark Spitler Low Stub3 May 2017Cleanup needed (May 2017), ... (May 2017), Orphaned (June 2017)
S. Mageswaran Low Start5 March 2018In-text citations lacking (March 2018), Style editing needed (March 2018), ... (March 2018), Cleanup needed (March 2018), Unsourced statements (March 2018)

Copied and pasted articles and sections with url provided (2)

ArticleImportanceClassCount OldestIssues
Neutron activation analysis Low Start1 December 2015... (December 2015)
Niosome Low Start2 August 2010Style editing needed (August 2010), ... (October 2016)

Excessive see also sections (1)

ArticleImportanceClassCount OldestIssues
Crude oil assay Mid Stub1 July 2017... (July 2017)

Sections needed (2)

ArticleImportanceClassCount OldestIssues
James W. Mayer Low Stub2 March 2018... (March 2018), References needed (March 2018)
Reagent High Start2 July 2017Introduction cleanup (July 2017), ... (July 2017)

Slanted towards recent events (1)

ArticleImportanceClassCount OldestIssues
Cosmochemistry Low Start3 January 2017Prose needed (January 2017), ... (January 2017), Cleanup needed (January 2017)

Tables needed (1)

ArticleImportanceClassCount OldestIssues
Breakthrough of the Year Low List4 December 2012Unsourced statements (December 2012), Cleanup needed (December 2016), ... (December 2016), List cleanup (December 2016)

Links

DOIs inactive (13)

ArticleImportanceClassCount OldestIssues
Allylic strain High B2 August 2013Factual verification needed (August 2013), ... (2017)
Andreas von Antropoff (1878-1956) Mid Start1 2017... (2017)
Antimicrobial polymer Mid Start1 2017... (2017)
Carbanion Mid C1 2017... (2017)
Environmental scanning electron microscope Low C2 May 2014Dead external links (May 2014), ... (2017)
Gradient copolymer Low C1 2017... (2017)
Isoflavones Mid C1 2017... (2017)
Nature Top GA3 February 2010Unsourced statements (February 2010, April 2010), ... (2018)
Oceanic carbon cycle Mid Start1 2018... (2018)
Polybenzimidazole fiber Low Start4 August 2013Unsourced statements (August 2013, November 2014), Promotional tone (May 2014), ... (2017)
Proton High C1 2017... (2017)
Rotaxane Mid B1 2017... (2017)
Silver nanoparticle Low C2 December 2015Unsourced statements (December 2015), ... (2018)

Dead external links (293)

ArticleImportanceClassCount OldestIssues
Advances in Mass Spectrometry Low Stub1 October 2016... (October 2016)
Air-free technique Mid C1 October 2016... (October 2016)
Alexander E. Shilov Low Stub1 June 2017... (June 2017)
Alexander Shulgin Low GA1 November 2017... (November 2017)
Alexandra Navrotsky Mid C2 February 2018... (February 2018), BLP articles lacking sources (April 2018)
Alexandre-Émile Béguyer de Chancourtois Mid B1 July 2017... (July 2017)
Alkali High Start2 June 2008References needed (June 2008), ... (July 2016)
Aluminium–lithium alloy Low Start3 January 2011Unsourced statements (January 2011, December 2013), ... (March 2018)
Amatoxin Low Start1 July 2017... (July 2017)
Amine oxide Low Start1 October 2016... (October 2016)
Amino acid Mid GA3 September 2010Page number citations needed (September 2010), ... (July 2017), Clarification needed (August 2017)
Ammoxidation Low C1 July 2017... (July 2017)
Andrea Zitolo High Start1 April 2018... (April 2018)
Andreas Libavius Low C1 August 2017... (August 2017)
André Dreiding Low Start1 October 2016... (October 2016)
Anti-fouling paint Low Start3 August 2012... (August 2012, November 2016, July 2017)
Antifreeze Mid B7 March 2009Unsourced statements (March 2009, November 2010, November 2014), Vague or ambiguous time (February 2016), ... (October 2016, September 2017, March 2018)
Antoine Lavoisier High B6 February 2013Unsourced statements (May 2013, February 2013, July 2016), ... (December 2017, March 2018), References needed (May 2018)
Aqion Low Start1 October 2016... (October 2016)
Argon flash Low Stub1 October 2016... (October 2016)
Arieh Ben-Naim Low Start1 October 2016... (October 2016)
Arsenate High Start1 July 2017... (July 2017)
Astrochemistry High Start1 January 2018... (January 2018)
Atom economy Mid Start1 June 2016... (June 2016)
Atropisomer Mid C1 October 2016... (October 2016)
August Wilhelm von Hofmann High Start1 October 2016... (October 2016)
Augustus George Vernon Harcourt Low Start1 March 2009... (March 2009)
Ayhan Ulubelen Low Start7 May 2012Detailed references needed, Unsourced statements (July 2013), BLP articles lacking sources (May 2012), Clarification needed (May 2012, July 2013), Vague or ambiguous time (July 2013), ... (October 2016)
Aza-Baylis–Hillman reaction Mid Start1 October 2016... (October 2016)
Azeotrope tables Mid List2 October 2016... (October 2016, July 2017)
Azide-alkyne Huisgen cycloaddition Mid C1 January 2018... (January 2018)
B. D. Kulkarni Low Start2 January 2018Web citation with no URL, ... (January 2018)
Barfoed's test Low Stub2 April 2009Unsourced statements (April 2009), ... (October 2016)
Barton decarboxylation Mid Start1 October 2016... (October 2016)
Battery (electricity) Mid C6 December 2010Potentially dated statements (2012, 2017), Unsourced statements (December 2010), References needed (April 2017), ... (June 2017, July 2017)
Bauxite Mid C2 April 2014References needed (April 2014), ... (January 2018)
Becher process Mid Start1 October 2016... (October 2016)
Behavior of nuclear fuel during a reactor accident Low C5 May 2013Expansion needed (May 2013), Citation with bare URL, Citation lacking title, ... (May 2016, October 2016)
Belousov–Zhabotinsky reaction Low Start1 October 2016... (October 2016)
Berni Alder Low Stub1 July 2017... (July 2017)
Biological hazard High Start1 March 2018... (March 2018)
Bioluminescence Low GA1 January 2018... (January 2018)
Black liquor Low Start4 June 2009Unsourced statements (June 2009, August 2013), ... (October 2010), Weasel-worded phrases (April 2013)
Bleach Mid C3 June 2013Unsourced statements (June 2013), URL error, ... (July 2017)
Bleaching of wood pulp Mid B2 October 2010... (October 2010, November 2016)
Bohuslav Brauner Low Start1 October 2010... (October 2010)
Boris Pavlovich Belousov Mid Start1 November 2016... (November 2016)
Brominated flame retardant High Start2 July 2007Unsourced statements (July 2007), ... (November 2016)
Bronze Mid C3 December 2012Unsourced statements (December 2012, March 2014), ... (November 2017)
Buchwald–Hartwig amination Mid C2 August 2016Reliable references lacking (August 2016), ... (November 2016)
COSHH Low C2 September 2015Unsourced statements (September 2015), ... (July 2017)
CRC Handbook of Chemistry and Physics Mid Start2 January 2018Sources lacking (January 2018), ... (January 2018)
CarbFix Low Start2 April 2016Update needed (April 2016), ... (November 2016)
Carbon sequestration Mid C9 August 2009Unsourced statements (August 2009, September 2010, January 2011, March 2015), Reliable references lacking (August 2015), ... (June 2016, November 2016, January 2017), Merge needed (April 2018)
Carbonyl metallurgy Low Stub2 September 2015Unsourced statements (September 2015), ... (November 2016)
Carolyn R. Bertozzi Low Start1 November 2016... (November 2016)
Catenation Low Start1 August 2017... (August 2017)
Cathode Mid Start1 December 2017... (December 2017)
ChemComm Low Start1 November 2016... (November 2016)
ChemSec Low C1 November 2016... (November 2016)
Chemical affinity Low Start1 November 2016... (November 2016)
Chemical shift Mid B2 January 2016... (January 2016), Unsourced statements (January 2017)
Chemical warfare Mid C6 April 2010Unsourced statements (November 2010, April 2010, April 2017), Weasel-worded phrases (November 2010), Disputed statements (May 2015), ... (May 2016)
Chicken wire (chemistry) Low Start5 November 2007Unsourced statements (November 2007), Citation with bare URL, Citation lacking title, ... (May 2016, November 2016)
Christian Møller Low Stub1 November 2016... (November 2016)
Chromated copper arsenate Low Start6 April 2012Unsourced statements (April 2012, September 2012, February 2014, November 2017, May 2018), ... (January 2018)
Clare Grey Low Stub2 March 2018... (March 2018), Unsourced statements (March 2018)
Colored fire Mid List3 June 2017Unsourced statements (June 2017), ... (February 2018), References needed (April 2018)
Corrinoid Mid Stub1 August 2017... (August 2017)
Covalent superconductor Low C1 August 2017... (August 2017)
Cryochemistry Mid Start5 November 2015Unsourced statements (November 2015), In-text citations lacking (November 2015), Clarification needed (November 2015), Vague or ambiguous time (November 2015), ... (January 2018)
Crystal structure of boron-rich metal borides Low B2 August 2017Citation with format and no URL, ... (August 2017)
Cucurbituril Low C1 August 2017... (August 2017)
Cyanoacrylate Mid C8 July 2013Unsourced statements (July 2013, September 2015, December 2015, April 2018), Potentially dated statements (2013), Web citation with no URL, ... (May 2016), References needed (December 2017)
Cycloalkane Mid Start1 August 2017... (August 2017)
DNA computing Low C4 June 2015Unsourced statements (June 2015), ... (July 2015), Peacock terms (September 2015), Weasel words (September 2015)
Daniel Rutherford Mid Start2 September 2017... (September 2017), Clarification needed (November 2017)
Debye–Hückel equation Mid B5 2007Potentially dated statements (2007), ... (December 2016, January 2018), Accuracy disputes or self-published (May 2018), Expansion needed (May 2018)
Deflagration to detonation transition Low Start3 February 2017Unsourced statements (February 2017), References needed (February 2017), ... (May 2018)
Diamond and Related Materials Low Stub1 December 2016... (December 2016)
Diazenylium Low C2 November 2015Broken or outdated citations (November 2015), ... (September 2017)
Diesel fuel Mid Start6 September 2014Unsourced statements (September 2014, October 2014), Clarification needed (January 2017, April 2017, December 2017), ... (September 2017)
Dihedral angle Low Start2 May 2017Factual verification needed (May 2017), ... (February 2018)
Disilyne Low C5 December 2016... (December 2016, September 2017), Cleanup needed (June 2017, June 2017), Clarification needed (June 2017)
Dorothy M. Needham Low Start3 July 2016... (July 2016), Unsourced statements (July 2016), Vague or ambiguous time (July 2016)
Dowd–Beckwith ring-expansion reaction Mid Start1 December 2016... (December 2016)
Dynamic hydrogen electrode Low Stub1 September 2017... (September 2017)
Edmond Frémy Mid Start1 May 2010... (May 2010)
Ednatol Low Stub1 March 2018... (March 2018)
Edward Harrison Memorial Prize Low List1 May 2017... (May 2017)
Electrochemiluminescence Mid Start1 December 2016... (December 2016)
Electrolysis of water Mid C2 January 2016Unsourced statements (January 2016), ... (May 2016)
Elements (journal) Low Start1 December 2016... (December 2016)
Elizabeth Ann Nalley Mid Start1 September 2017... (September 2017)
Emily Lloyd (chemist) Low Start1 December 2017... (December 2017)
Enders SAMP/RAMP hydrazone-alkylation reaction Low C1 December 2016... (December 2016)
Environmental scanning electron microscope Low C2 May 2014... (May 2014), DOIs inactive (2017)
Ernest Rutherford High C3 August 2017Web citation with no URL, Unsourced statements (August 2017), ... (April 2018)
Ernst Otto Beckmann Low C2 February 2013References needed (February 2013), ... (September 2017)
Exide lead contamination Low C1 March 2018... (March 2018)
Extended periodic table Low B7 April 2011Expert attention needed (December 2011), Unsourced statements (February 2012), Potentially dated statements (April 2011), Weasel-worded phrases (October 2011, May 2018), ... (October 2016)
Faiza Al-Kharafi Low C1 December 2016... (December 2016)
Faraday Lectureship Prize Low List1 May 2017... (May 2017)
Faten Zahran Mohammed Low Stub2 January 2011BLP articles lacking sources (January 2011), ... (December 2016)
Fischer–Hepp rearrangement Low Start1 July 2009... (July 2009)
Fischer–Tropsch process Mid B2 October 2015Unsourced statements (October 2015), ... (January 2018)
Flammability limit Mid Start1 October 2017... (October 2017)
Fluoride High C6 April 2015Unsourced statements (April 2015, July 2016, September 2017), CS1 errors: chapter ignored, Page number citations needed (July 2016), ... (October 2017)
Fluorocarbon Mid Start3 May 2017Citation lacking title, Unsourced statements (May 2017), ... (October 2017)
Folin–Ciocalteu reagent Mid Start1 October 2017... (October 2017)
Fourier-transform infrared spectroscopy High C1 April 2016... (April 2016)
Franz-Joseph Müller von Reichenstein Low Start1 December 2017... (December 2017)
Friedel–Crafts reaction Mid B4 December 2011Unsourced statements (December 2011, June 2017), Citation lacking title, ... (December 2017)
Fritz Pregl High Start3 January 2011In-text citations lacking (January 2011), Unsourced statements (August 2017), ... (November 2017)
Fuel cell Mid B4 September 2010... (September 2010), Potentially dated statements (August 2011, December 2016), Failed verification (February 2012)
Fukui function Low Stub1 August 2017... (August 2017)
Fátima Ferreira Mid Start1 January 2017... (January 2017)
Galen D. Stucky Low Start1 December 2011... (December 2011)
Gasoline Mid B14 June 2009Clarification needed (June 2009, January 2015, July 2016, August 2016), Unsourced statements (September 2014, April 2016, June 2015, August 2016, October 2016, May 2017, February 2018), Update needed (April 2016), ... (January 2017, August 2017)
Gertrude B. Elion Low Start1 January 2017... (January 2017)
Gibbs free energy Top B7 March 2015Expert attention needed (April 2018), Clarification needed (March 2015, October 2016), ... (January 2017), References needed (August 2017), Too technical (April 2018)
Gibbs–Helmholtz equation Low Start1 December 2017... (December 2017)
Gideon Henderson Low Stub2 May 2013Unsourced statements (May 2013), ... (October 2017)
Giuseppe Cilento Low Stub1 January 2018... (January 2018)
Globally Harmonized System of Classification and Labelling of Chemicals Mid Start7 May 2008Style editing needed (May 2008), In-text citations lacking (September 2013), ... (September 2016), Vague or ambiguous time (February 2017), Unsourced statements (February 2017), Weasel-worded phrases (February 2017), References needed (February 2017)
Gottfried Osann Low Stub1 January 2018... (January 2018)
Graham John Hills Low Start1 November 2017... (November 2017)
Guido Goldschmiedt Low C1 October 2017... (October 2017)
Gérard Férey Mid Start2 August 2017References needed (August 2017), ... (October 2017)
Hand sanitizer Mid Start3 January 2012Detailed references needed, Unsourced statements (October 2013), ... (January 2012)
Hans Freeman Mid GA1 October 2017... (October 2017)
Hans Leopold Meyer Low Stub1 October 2010... (October 2010)
Harry Kroto Mid B2 April 2017Unsourced statements (April 2017), ... (November 2017)
Henry M. Fales Low Start1 April 2017... (April 2017)
Hermann–Mauguin notation Mid Start1 April 2018... (April 2018)
Hexafluoride Mid C2 July 2012Unsourced statements (July 2012), ... (April 2017)
High-pressure electrolysis Low Start2 April 2017... (April 2017, November 2017)
History of molecular theory Mid A1 January 2018... (January 2018)
Homogeneity and heterogeneity Mid Stub3 September 2010Unsourced statements (September 2010), Clarification needed (September 2010), ... (July 2016)
Hugo Weidel Low Start1 October 2010... (October 2010)
Ice Mid C2 March 2017References needed (March 2017), ... (April 2018)
International Maritime Dangerous Goods Code Low Stub1 July 2017... (July 2017)
International Union of Pure and Applied Chemistry Top GA2 September 2017... (September 2017, November 2017)
International Year of Chemistry Mid Start1 November 2017... (November 2017)
Invisible ink Low C2 January 2011Cleanup needed (January 2011), ... (November 2017)
Ion-attachment mass spectrometry Low Start1 January 2018... (January 2018)
Ionic crystal Low Stub1 September 2010... (September 2010)
Irreducible representation Mid Start3 July 2013Unsourced statements (July 2013), Clarification needed (July 2016), ... (November 2017)
Jabir ibn Hayyan Mid B5 May 2009Unsourced statements (May 2009, July 2014, March 2014), Factual verification needed (June 2011), ... (August 2017)
Jeehiun Lee Low Stub5 February 2009Orphaned (February 2009), BLP articles lacking sources (November 2012), Reliable references lacking (November 2012), Notability unclear (November 2012), ... (March 2018)
Jerome J. Workman Jr. Low Start4 October 2013... (October 2013), Citation with bare URL, Citation lacking title, Promotional tone (January 2015)
Johann Rudolf Glauber Mid Start2 November 2016Introduction cleanup (November 2016), ... (November 2017)
John D. Axtell Low Stub1 April 2017... (April 2017)
John Eland (chemist) Low Stub1 June 2017... (June 2017)
Josef Maria Eder Low Start1 October 2010... (October 2010)
Joseph Swan Mid B2 September 2011Unsourced statements (September 2011), ... (December 2017)
Journal of Antimicrobial Chemotherapy Low Start1 April 2017... (April 2017)
Journal of the Chemical Society Mid Start2 February 2015References needed (February 2015), ... (February 2015)
Julius Adolph Stöckhardt Low C1 April 2017... (April 2017)
Karl Kordesch Low Start1 December 2017... (December 2017)
Karlsruhe Congress Mid Start1 May 2017... (May 2017)
Kenneth Breslauer Low Start2 May 2017... (May 2017, December 2017)
Kenneth Karlin (chemist) Low Start6 May 2018BLP articles lacking sources (May 2018), Notability unclear (May 2018), Categories needed (May 2018), Orphaned (May 2018), ... (May 2018), Unsourced statements (May 2018)
Klaus-Dieter Hungenberg Low Start5 September 2013Reliable references lacking (November 2013), Orphaned (September 2013), Peacock terms (November 2013), Reference errors, ... (May 2017)
Kovats retention index Low Stub1 October 2014... (October 2014)
Lanny D. Schmidt Low C1 October 2010... (October 2010)
Lanthanide trifluoromethanesulfonates Mid C2 January 2008... (April 2009), Unsourced statements (January 2008)
Lead–acid battery Mid C4 July 2013References needed (December 2013, December 2017), Clarification needed (July 2013), ... (December 2016)
Leonard Francis Lindoy Low Stub1 December 2017... (December 2017)
Lewis Feuchtwanger Low Stub1 December 2017... (December 2017)
Linear molecular geometry Low Stub1 December 2017... (December 2017)
List of extremely hazardous substances Mid List1 February 2018... (February 2018)
List of minerals A (complete) Low List1 January 2018... (January 2018)
List of minerals C (complete) Low List1 January 2018... (January 2018)
List of minerals F (complete) Low List1 January 2018... (January 2018)
List of minerals S (complete) Low List1 January 2018... (January 2018)
List of refrigerants Mid List1 January 2018... (January 2018)
Lithium battery Low C1 January 2018... (January 2018)
Lithium iron phosphate battery Mid Start9 April 2010Unsourced statements (April 2010, December 2010, February 2012, April 2013, February 2014, April 2016), Update needed (June 2014), References needed (June 2014), ... (January 2018)
Lithium-ion battery Low C16 June 2010Detailed references needed, Potentially dated statements (2017, January 2014, 2016), Disputed statements (June 2010), Unsourced statements (June 2014, September 2016, October 2017, February 2018), ... (November 2015), Reliable references lacking (August 2014, November 2016), Failed verification (November 2013, February 2016, December 2016, February 2018)
Locant Low Stub1 December 2010... (December 2010)
Lodewijk van den Berg Low GA2 2014Potentially dated statements (2014), ... (November 2017)
Lubrication Low Start3 October 2017Expansion needed (October 2017), ... (January 2018), Unsourced statements (March 2018)
MADNESS Low Start1 January 2018... (January 2018)
MDL Chime Low Stub3 July 2014In-text citations lacking (July 2014), Reliable references lacking (July 2014), ... (May 2017)
MTBE controversy Mid Start2 October 2013... (October 2013), Unsourced statements (April 2018)
Marcus theory Mid C2 June 2017CS1 errors: dates, ... (June 2017)
Markush structure Unknown Unassessed2 February 2018CS1 errors: external links, ... (February 2018)
Martin Heinrich Klaproth High Start2 January 2013References needed (January 2013), ... (January 2018)
Masataka Ogawa Low Start1 January 2018... (January 2018)
Mass spectrometry High B2 January 2015... (January 2015, September 2017)
Match Mid C3 June 2017... (June 2017, December 2017), Merge needed (May 2018)
Max Volmer Low Start1 January 2018... (January 2018)
McMurry reaction Mid C1 January 2018... (January 2018)
Melting point apparatus Mid Start2 June 2016Sources lacking (June 2016), ... (January 2018)
Metadynamics Low Start1 January 2018... (January 2018)
Metallomics (journal) Low Start1 January 2018... (January 2018)
Methylation High C2 June 2017Unsourced statements (June 2017), ... (January 2018)
Microwave chemistry Mid Start1 January 2018... (January 2018)
Migratory insertion High Start1 January 2018... (January 2018)
Molecular tweezers Low C1 February 2018... (February 2018)
Molecule mining Low Start1 February 2018... (February 2018)
Monatomic gas Low Start2 May 2012References needed (May 2012), ... (February 2018)
Monolithic HPLC column Low Start6 January 2011Style editing needed (January 2011), Unsourced statements (April 2015), BLP articles lacking sources (June 2014), Original research (June 2014), ... (April 2015), Reliable references lacking (September 2015)
Mucilage Low Start1 December 2017... (December 2017)
Muhammad ibn Zakariya al-Razi Low C7 November 2010Unsourced statements (October 2012, November 2016), References needed (May 2012), Factual verification needed (November 2010), Web citation with no URL, CS1 errors: dates, ... (December 2017)
NanoScale Corporation Low Start2 July 2016... (July 2016), Orphaned (July 2017)
Nanocellulose High B9 May 2013Unsourced statements (October 2014, March 2017), Clarification needed (May 2013, March 2017), CS1 errors: external links, Page number citations needed (March 2017), Weasel-worded phrases (March 2017), Reliable references lacking (March 2017), ... (February 2018)
Neonicotinoid Low C8 2013Potentially dated statements (2013, 2014), Unsourced statements (March 2015, February 2018, April 2018), Vague or ambiguous geographic scope (March 2015), Clarification needed (September 2016), ... (April 2018)
Nickel–iron battery Unknown Unassessed1 February 2018... (February 2018)
Nitrile Mid C3 May 2009... (May 2009), Citation with format and no URL, Unsourced statements (November 2017)
Norman Haworth High Start1 February 2018... (February 2018)
Occupational exposure limit Mid Start1 December 2017... (December 2017)
Ocean acidification Low C4 February 2012Unsourced statements (January 2014), Failed verification (February 2012, June 2017), ... (February 2018)
Octafluoride Low Stub1 February 2018... (February 2018)
Octahedral molecular geometry Low C1 January 2018... (January 2018)
Optical contact bonding Low Start2 December 2009Expansion needed (December 2009), ... (December 2016)
Organosulfur compounds Mid C1 January 2018... (January 2018)
Oxygen toxicity Low FA2 September 2017... (September 2017, October 2017)
Oxypnictide Low Start1 March 2018... (March 2018)
Paracelsus High C6 June 2017Unsourced statements (June 2017), Disputed statements (June 2017), Clarification needed (August 2017), Cleanup needed (January 2018, January 2018), ... (March 2018)
Patsy O'Connell Sherman Low Start1 November 2010... (November 2010)
Paul G. Gassman Mid Start1 March 2018... (March 2018)
Peter Agre Mid Start2 December 2017... (December 2017, March 2018)
Peter Goodhew Low Stub1 March 2018... (March 2018)
Phase-boundary catalysis Low Stub1 January 2018... (January 2018)
Phenol extraction Low Start3 April 2014... (April 2014), Style editing needed (April 2014), References needed (February 2015)
Photodissociation Mid C2 August 2014References needed (August 2014), ... (August 2014)
Photopolymer Low C2 March 2018CS1 errors: dates, ... (March 2018)
Pierre Braunstein Low Stub1 March 2018... (March 2018)
Polybrominated diphenyl ethers Mid C4 September 2011Unsourced statements (May 2013), ... (September 2011, March 2018), CS1 errors: dates
Polychlorinated dibenzodioxins High B3 April 2007Unsourced statements (April 2007), CS1 errors: chapter ignored, ... (March 2018)
Polymer High B4 May 2009Unsourced statements (May 2009, October 2017), CS1 errors: external links, ... (March 2018)
Positive pressure personnel suit Low Start3 December 2011Expansion needed (December 2011), ... (March 2017), References needed (August 2017)
Powder Mid Start2 April 2010In-text citations lacking (April 2010), ... (March 2018)
Power-to-gas Unknown Unassessed2 March 2018... (March 2018), Unsourced statements (May 2018)
Predicted no-effect concentration Low Start1 September 2017... (September 2017)
Protonophore Low Stub1 April 2018... (April 2018)
Pulp (paper) Low C2 July 2009Unsourced statements (July 2009), ... (May 2017)
Q-carbon Low Start5 December 2015Expert attention needed (January 2017), Original research (December 2015), Clarification needed (January 2017), ... (April 2018)
Rajinder Kumar (chemical engineer) Low Start1 April 2018... (April 2018)
Ramachandran plot Low C1 April 2018... (April 2018)
Reactive nitrogen Mid C2 August 2014In-text citations lacking (August 2014), ... (August 2014)
Reductive amination Mid C1 April 2018... (April 2018)
Refrigerant Low C6 May 2013Unsourced statements (December 2013, August 2015, March 2018), References needed (December 2013), Accuracy disputes or self-published (May 2013), ... (January 2017)
Registration, Evaluation, Authorisation and Restriction of Chemicals Low Start3 April 2012Unsourced statements (April 2012), Potentially dated statements (June 2015), ... (April 2018)
Relative atomic mass Mid C1 April 2018... (April 2018)
Relative density Mid Start2 September 2011Unsourced statements (May 2012), ... (September 2011)
Richard Denton Low Stub1 April 2018... (April 2018)
Roald Hoffmann High C1 September 2017... (September 2017)
Robert Boyle Prize for Analytical Science Low Stub1 May 2017... (May 2017)
Robert Havemann Mid Start1 November 2017... (November 2017)
Robert K. Crane Low C1 April 2018... (April 2018)
Rotterdam Convention Low Stub1 April 2018... (April 2018)
Roy J. Plunkett Low Start1 April 2018... (April 2018)
Ryoo Ryong Low Start4 December 2011BLP articles lacking sources (December 2011), Citation with bare URL, Citation lacking title, ... (April 2018)
Samuel J. Danishefsky Low C1 May 2018... (May 2018)
Sapogenin Low Stub1 May 2018... (May 2018)
Schlenk flask Mid Start1 May 2018... (May 2018)
Seesaw molecular geometry Low Start1 May 2018... (May 2018)
Self accelerating decomposition temperature Low Start1 May 2018... (May 2018)
Shana O. Kelley Low Stub1 March 2012... (March 2012)
Silver chloride electrode Low B5 November 2007Unsourced statements (February 2009, November 2007), Citation with bare URL, Citation lacking title, ... (May 2018)
Standard atomic weight Mid C2 January 2014Disputed statements (January 2014), ... (March 2018)
Standard conditions for temperature and pressure High B5 May 2012Unsourced statements (May 2012), Citation with bare URL, Citation lacking title, ... (February 2017, January 2018)
Stanley B. Prusiner Mid Start2 October 2015Vague or ambiguous time (October 2015), ... (March 2018)
Stille reaction Mid C1 December 2017... (December 2017)
Strobilurin Low Stub2 July 2011Clarification needed (July 2011), ... (August 2017)
Sublimation (phase transition) High C1 June 2016... (June 2016)
Sulfite process High C1 October 2010... (October 2010)
Superheated water Mid B2 October 2010... (October 2010, January 2017)
Supramolecular Chemistry Award Low List1 May 2017... (May 2017)
Tacticity Mid C2 February 2007Unsourced statements (February 2007), ... (August 2016)
Tannin High C9 October 2010Unsourced statements (October 2015, March 2013, August 2017, October 2017), References needed (October 2015, October 2017), ... (October 2010, September 2016, January 2018)
Tear gas Mid Start3 December 2013Unsourced statements (December 2013), ... (October 2017), Failed verification (October 2017)
Temperature-programmed reduction Low Stub1 February 2017... (February 2017)
Theodore William Richards High C2 June 2016... (June 2016), Unsourced statements (August 2017)
Thomas Burr Osborne (chemist) Mid C1 March 2018... (March 2018)
Timeline of chemical element discoveries Mid C3 September 2010... (September 2010), CS1 errors: chapter ignored, Clarification needed (March 2018)
Titanium alloy Low Start2 August 2010Unsourced statements (August 2010), ... (June 2016)
Toxic Substances Control Act of 1976 Mid Start6 July 2013Unsourced statements (July 2013, April 2016), Potentially dated statements (2015), Reference errors, Reliable references lacking (April 2016), ... (December 2017)
Trans fat Mid B12 September 2010Unsourced statements (May 2014, September 2015, April 2013, June 2015, April 2017), Update needed (September 2010), Obsolete information (March 2012), Vague or ambiguous geographic scope (September 2012), Citation with format and no URL, ... (September 2017, January 2018), Reliable references lacking (November 2017)
Transparent ceramics Low C3 October 2013Unsourced statements (October 2013, February 2016), ... (February 2018)
Tributyltin Mid Start3 July 2016... (July 2016), Unsourced statements (July 2017), Weasel-worded phrases (July 2017)
Trigonal pyramidal molecular geometry High Start1 December 2017... (December 2017)
Ullmann condensation Mid Start1 January 2018... (January 2018)
VSEPR theory High C4 May 2014Unsourced statements (May 2014, June 2014, February 2017), ... (December 2017)
Vanadium redox battery Low C3 March 2016Unsourced statements (March 2016), CS1 errors: dates, ... (March 2017)
Water splitting Low C6 2005Potentially dated statements (2005), Unsourced statements (February 2007, November 2017), Citation with bare URL, Citation lacking title, ... (December 2017)
Weak base Mid Start1 March 2018... (March 2018)
Wrought iron Mid C5 March 2011Detailed references needed, Unsourced statements (March 2011, February 2013, September 2017), ... (December 2017)
Xylene Mid Start2 June 2016Clarification needed (June 2016), ... (July 2016)
Xyloside Low Stub2 May 2010References needed (May 2010), ... (July 2016)

External link cleanup (4)

ArticleImportanceClassCount OldestIssues
Cheminformatics Mid Start2 June 2013... (June 2013), Spam cleanup (June 2013)
Matthew Linford Low Start4 April 2012BLP articles lacking sources (April 2012), Style editing needed (April 2012), ... (December 2012), Spam cleanup (December 2012)
Quantum Monte Carlo Low Start2 October 2016Spam cleanup (October 2016), ... (October 2016)
Simplified molecular-input line-entry system Low Start2 September 2012... (September 2012), Spam cleanup (September 2012)

Links needing disambiguation (5)

ArticleImportanceClassCount OldestIssues
Alkenylsuccinic anhydrides Mid C1 February 2018... (February 2018)
Giovanni Francisco Vigani Low C1 May 2016... (May 2016)
List of food additives Mid List3 March 2010Cleanup needed (March 2010, March 2010), ... (May 2016)
Odor Low Start5 July 2010Unsourced statements (July 2010, November 2010), ... (July 2017), Copy edit needed (January 2018), Style editing needed (January 2018)
Society for Analytical Chemistry Low Start1 May 2018... (May 2018)

Orphaned (288)

ArticleImportanceClassCount OldestIssues
AA'-graphite Unknown Start1 February 2018... (February 2018)
AJ alloys Low Stub1 April 2017... (April 2017)
Abhik Ghosh Low Start1 September 2016... (September 2016)
Adam S. Veige Low Start2 January 2012Introduction cleanup (January 2012), ... (December 2012)
Adrian V. Stokes Low Stub1 April 2017... (April 2017)
Agelasimine Low Stub1 July 2013... (July 2013)
Albert Johan Petersson Low Stub2 July 2017... (October 2017), In-text citations lacking (July 2017)
Alcoholate NA Disambig1 September 2017... (September 2017)
Alkenyl peroxides Low Start1 December 2016... (December 2016)
Allen–Millar–Trippett rearrangement Low Stub1 May 2016... (May 2016)
Allylic stannane addition Low C2 November 2011... (November 2011), Merge needed (December 2017)
Andrew Zydney Low Stub1 April 2017... (April 2017)
Andrzej Wieckowski Low C1 April 2015... (April 2015)
Annonamine Low Stub1 October 2013... (October 2013)
Antiperovskite (structure) Low Start1 December 2014... (December 2014)
Asterane Low Stub1 January 2011... (January 2011)
Asymmetric ion-pairing catalysis Low Start1 November 2015... (November 2015)
Aza-Cope rearrangement Low B1 January 2014... (January 2014)
Azadipyrromethene Low Stub2 April 2016Expansion needed (April 2016), ... (April 2016)
Baltic Chemistry Olympiad Mid Stub1 February 2013... (February 2013)
Base modifying agent Low Stub2 January 2010Sources lacking (January 2010), ... (March 2010)
Bates–Guggenheim Convention Low Stub1 December 2012... (December 2012)
Bin Chen Low Start1 August 2012... (August 2012)
Bioanalysis (journal) Low Stub1 October 2016... (October 2016)
Boekelheide reaction Low Stub1 October 2015... (October 2015)
Bromatometry Low Stub1 January 2011... (January 2011)
Carbonyl oxidation with hypervalent iodine reagents Mid C1 September 2012... (September 2012)
Caroline Langat Thoruwa Low Stub1 September 2016... (September 2016)
Chain disproportionation Mid Stub1 December 2010... (December 2010)
Characteristic property Low Stub1 July 2010... (July 2010)
Charge contrast imaging Low Stub1 August 2009... (August 2009)
Charles Buddie Mullins Low Stub1 May 2017... (May 2017)
Charles Upham Shepard Low Start2 December 2012References needed (April 2014), ... (December 2012)
ChemWindow Low Start1 February 2017... (February 2017)
Chemistry of photolithography Low C1 March 2013... (March 2013)
Chinese Chemistry Olympiad Low Stub1 September 2012... (September 2012)
Chloroorganic carrier Low Stub2 December 2014References needed (December 2014), ... (December 2014)
Chlorosulfolipid Low Start1 September 2013... (September 2013)
Chondronectin Low Stub3 October 2010Expert attention needed (January 2016), ... (October 2010)
Christopher Jaroniec Low Stub1 December 2013... (December 2013)
Chromotropism Low Stub1 September 2013... (September 2013)
Cieplak effect Low C1 December 2014... (December 2014)
Clark R. Landis Low Start1 August 2017... (August 2017)
Claudia Felser Low Stub1 August 2017... (August 2017)
Cobalt(II)–porphyrin catalysis Low Start6 April 2017Expert attention needed (April 2017), Too technical (April 2017), ... (April 2017), Wikilinks needed (May 2017), Reliable references lacking (May 2017)
Coil (chemistry) Low Stub2 December 2009Sources lacking (December 2009), ... (December 2009)
Combining rules Mid Start1 May 2016... (May 2016)
Composition drift Low C1 January 2015... (January 2015)
Conductive characteristics in coated synthetic fabrics Low Stub3 October 2010References needed (December 2011), Notability unclear (December 2011), ... (October 2010)
Crich beta-mannosylation Low C4 May 2009References needed (May 2009), Expert attention needed (January 2014), ... (January 2011)
Cu-Pt type ordering in III-V semiconductor Low Stub1 January 2011... (January 2011)
Cubosome Low Start2 April 2016CS1 errors: dates, ... (April 2016)
Curt Wittig Low Start5 June 2010Cleanup needed (May 2011, May 2011), ... (June 2010), BLP articles lacking sources (May 2011), Conflict of interest (May 2011)
Cyril Y. Bowers Low Start3 April 2010... (April 2010), Cleanup needed (March 2011, March 2011)
Danheiser benzannulation Low C1 April 2015... (April 2015)
Daniel Neumark Low Stub1 May 2017... (May 2017)
Dappen glass Low Start1 June 2012... (June 2012)
Dark current (chemistry) Low Stub2 November 2008Sources lacking (November 2008), ... (February 2009)
David Avnir Low Stub1 March 2015... (March 2015)
David Weatherburn Low Stub1 October 2016... (October 2016)
Debra R. Rolison Low Start2 June 2017... (June 2017), Notability unclear (June 2017)
Decarboxylative cross-coupling Low C2 February 2013Unsourced statements (June 2014), ... (February 2013)
Decrepitation Low Start3 February 2014Unsourced statements (February 2014), Sources lacking (February 2014), ... (June 2014)
Dehydrogenation of amine-boranes Low C1 May 2013... (May 2013)
Dialdehyde starch Low Stub1 December 2012... (December 2012)
Diffusive gradients in thin films Low C1 May 2015... (May 2015)
Disk-covering method Low Stub2 February 2008... (February 2009), In-text citations lacking (February 2008)
Disordered Structure Refinement Low Start1 February 2017... (February 2017)
Douglas Keszler Low Start1 June 2017... (June 2017)
Dry ice color show Low Start3 August 2017Cleanup needed (August 2017, August 2017), ... (August 2017)
Dry water Low Start2 April 2014... (April 2014), Unsourced statements (August 2016)
EN series Low Stub1 September 2010... (September 2010)
ETH Laboratory of Ion Beam Physics Low Stub1 January 2011... (January 2011)
Efstratios N. Pistikopoulos Low Start2 June 2015BLP articles lacking sources (June 2015), ... (May 2016)
Electrochemical promotion of catalysis Mid Start1 January 2018... (January 2018)
Electrophilic substitution of unsaturated silanes Low C2 August 2017... (August 2017), Wikilinks needed (August 2017)
Element-reactant-product table Low Stub1 February 2009... (February 2009)
Elementar Low Start2 August 2014References needed (August 2014), ... (April 2015)
Enrique Guzmán y Valle Low Start1 January 2011... (January 2011)
Entatic state Low Start1 October 2016... (October 2016)
Eurokin Low Stub3 October 2010Reliable references lacking (October 2010), Promotional tone (October 2010), ... (October 2010)
F-block metallocene Low Start2 March 2016... (March 2016), Reliable references lacking (March 2016)
Ferroverdin Low C1 July 2011... (July 2011)
Flavonoid alkaloid Low Start1 March 2014... (March 2014)
Fluoroethyl Low Stub1 January 2011... (January 2011)
FreeON Low Stub3 June 2010Introduction cleanup (June 2010), Context needed (June 2010), ... (January 2011)
Fujiwara–Moritani reaction Mid C1 August 2017... (August 2017)
Functionalized polyolefins Mid Start5 March 2016Expert attention needed (March 2016), Reliable references lacking (March 2016), Weasel-worded phrases (March 2016), ... (May 2016)
Future Medicinal Chemistry Low Stub1 October 2016... (October 2016)
G-strain Low C1 December 2014... (December 2014)
GWASdb Low Start1 December 2011... (December 2011)
Gadiv Petrochemical Industries Low Start1 May 2010... (May 2010)
Gallagher–Hollander degradation Low Stub1 January 2011... (January 2011)
Gem-Difluoroalkene Low Stub2 February 2009... (February 2009), Sources lacking (December 2009)
Geometry index Low Start1 December 2017... (December 2017)
George Cecil Jaffe Low Stub1 April 2016... (April 2016)
Gerald Aspirall Low Stub1 May 2017... (May 2017)
Gereon Niedner-Schatteburg Unknown Unassessed1 September 2016... (September 2016)
Gerrit Friedrich Otto Toennies Low Start1 January 2017... (January 2017)
Glycomimetic Low Start1 September 2011... (September 2011)
Graeme Moad Low Stub1 October 2015... (October 2015)
Grote–Hynes theory Low Stub4 August 2015References needed (August 2015), Reliable references lacking (August 2015), ... (August 2015), Wikilinks needed (September 2015)
Gustavo Scuseria Low Stub3 May 2015Reliable references lacking (May 2015), BLP articles lacking sources (May 2015), ... (June 2016)
Handbook of Porphyrin Science Low Stub2 August 2009References needed (August 2009), ... (January 2011)
Hans Harms Unknown Stub1 August 2016... (August 2016)
Headspace gas chromatography for dissolved gas measurement Mid C4 December 2014Expansion needed (December 2014), Introduction cleanup (December 2014), ... (December 2014), Context needed (December 2014)
Heavy liquid Low Stub1 May 2015... (May 2015)
Henry Wurtz Mid Stub2 November 2010... (November 2010), In-text citations lacking (May 2013)
Heteroatom-promoted lateral lithiation Low B1 July 2015... (July 2015)
Heterosaccharide Low Stub2 February 2009... (February 2009), Sources lacking (December 2009)
Hexagonal water Low Start1 June 2016... (June 2016)
Hydroalkoxylation Low Stub1 May 2014... (May 2014)
Hydrogen-bridged cations Low C1 June 2017... (June 2017)
Hypersaturation Low Stub2 February 2009... (February 2009), Sources lacking (December 2009)
II-VI semiconductor compound Low Start1 March 2016... (March 2016)
Ida Kraus Ragins Low Start1 February 2018... (February 2018)
Imine Diels–Alder reaction Low C2 April 2013Wikilinks needed (April 2013), ... (August 2013)
In situ polymerization Low Stub4 April 2009References needed (April 2009), Cleanup needed (April 2009, April 2009), ... (December 2015)
Inductive cleavage Low Stub2 April 2013... (April 2013), Wikilinks needed (September 2015)
Informative site Low Stub1 February 2009... (February 2009)
Ion Exchange Letters Low Stub1 January 2011... (January 2011)
Ionic hydrogenation Low C1 June 2016... (June 2016)
Ionosilica Unknown Unassessed5 November 2015Expert attention needed (November 2015), ... (November 2015), Conflict of interest (November 2015), Reliable references lacking (April 2018)
Isay reaction Low Stub1 January 2011... (January 2011)
Isotopic ratio outlier analysis Low Start2 January 2014... (August 2014), Reference cleanup (January 2014)
Jahres-Bericht über die Fortschritte der chemischen Technologie für Fabrikanten, Chemiker, Pharmaceuten, Hütten- und Forstleute und Cameralisten Low Stub4 October 2013Wikilinks needed (December 2013), ... (October 2013), Notability unclear (September 2016), Sources lacking (September 2016)
James Nowick Low Start1 March 2016... (March 2016)
Janet Kreizman Low Stub3 November 2013Wikilinks needed (December 2013), ... (November 2013), BLP articles lacking sources (June 2016)
Janis Louie Low Start2 June 2017Unsourced statements (June 2017), ... (July 2017)
Jeehiun Lee Low Stub5 February 2009... (February 2009), BLP articles lacking sources (November 2012), Reliable references lacking (November 2012), Notability unclear (November 2012), Dead external links (March 2018)
Jeffrey E. Dick Low Start2 April 2018... (April 2018), Notability unclear (April 2018)
Jochen Küpper Mid Start1 November 2015... (November 2015)
Johann Friedrich Cartheuser Low Stub2 July 2014In-text citations lacking (July 2014), ... (June 2016)
Jonathan Abbatt Low Stub1 August 2017... (August 2017)
Joseph Thomas Walker Low Start3 March 2015References needed (March 2015), ... (May 2015), Peacock terms (March 2015)
Juan J. de Pablo Low Start1 October 2017... (October 2017)
Judd–Ofelt theory Mid Stub4 November 2015Expert attention needed (November 2015), Expansion needed (November 2015), ... (November 2015)
Julia R. Burdge Low Start4 March 2011Reliable references lacking (March 2011), BLP articles lacking sources (March 2011, September 2012), ... (September 2012)
K. W. Michael Siu Low Stub1 January 2017... (January 2017)
Karen Goldberg Low Start1 June 2017... (June 2017)
Keck asymmetric allylation Mid C2 July 2017Weasel-worded phrases (July 2017), ... (August 2017)
Kenneth G. Caulton Low Start1 August 2017... (August 2017)
Kenneth Karlin (chemist) Low Start6 May 2018BLP articles lacking sources (May 2018), Notability unclear (May 2018), Categories needed (May 2018), ... (May 2018), Dead external links (May 2018), Unsourced statements (May 2018)
Kepert model Low Stub1 May 2011... (May 2011)
Kimberly Renee Dunbar Low Start1 June 2017... (June 2017)
Kimberly W. Anderson Low Start2 March 2018Reliable references lacking (March 2018), ... (March 2018)
Klaus-Dieter Hungenberg Low Start5 September 2013Reliable references lacking (November 2013), ... (September 2013), Peacock terms (November 2013), Reference errors, Dead external links (May 2017)
Korean Fiber Society Low Stub3 September 2009Expert attention needed (September 2009), ... (January 2011)
Koutecký–Levich equation Low Start1 June 2017... (June 2017)
Lakshmi Kantam Low Start1 December 2013... (December 2013)
Lasse Jensen Low Stub1 April 2016... (April 2016)
Lateral motor column neuron Low Stub1 February 2009... (February 2009)
Lectka enantioselective beta-lactam synthesis Low Start1 September 2010... (September 2010)
Leucoderivative Low Stub1 September 2010... (September 2010)
Lhasa (computing) Low Stub1 January 2011... (January 2011)
Liquid crystalline elastomer Low Start4 May 2017Expert attention needed (May 2017), Too technical (May 2017), ... (June 2017)
Liquid nitrogen wash Low Start1 March 2017... (March 2017)
List of Jewish American chemists Low List1 January 2011... (January 2011)
List of benzo compounds Low List2 January 2010... (January 2010), References needed (March 2014)
List of coffee chemicals Low List2 June 2014... (June 2014), Incomplete lists (September 2016)
List of water-miscible solvents Low List1 October 2013... (October 2013)
Lithium hybrid organic battery Low Start5 April 2015Expert attention needed (April 2015), ... (April 2015), Too technical (April 2015), Wikilinks needed (June 2015)
Lyotropy Unknown Start5 March 2018Expert attention needed (March 2018), Too technical (March 2018), Wikilinks needed (March 2018), ... (March 2018)
Magnadur Low Stub1 April 2018... (April 2018)
Mallory metal Low Stub1 April 2010... (April 2010)
Margaret Douie Dougal Low Stub1 February 2018... (February 2018)
Marie Mercury Roth Low Start1 June 2016... (June 2016)
Mark Alan Barteau Low Stub1 August 2017... (August 2017)
Mark Eberhart Low Stub2 January 2011... (January 2011), BLP articles lacking sources (February 2011)
Mark Spitler Low Stub3 May 2017Cleanup needed (May 2017), Close paraphrasing (May 2017), ... (June 2017)
Marschalk reaction Low Stub1 January 2011... (January 2011)
Max Speter Mid Start1 May 2015... (May 2015)
Metal-centered cycloaddition reactions Low Start1 June 2014... (June 2014)
Metallogels Mid C1 March 2016... (March 2016)
Metallomesogen Low C1 January 2015... (January 2015)
Methylamide Low Stub1 January 2011... (January 2011)
Metrohm Low Start2 December 2016References needed (December 2016), ... (September 2017)
Michaelis-Menten-Monod kinetics Low Start1 March 2017... (March 2017)
Micro-compounding Low Start2 July 2012References needed (August 2012), ... (July 2012)
Micromotor Low Start1 June 2015... (June 2015)
Mietek Jaroniec Low Start1 December 2013... (December 2013)
Milk fat globule membrane Low A1 October 2017... (October 2017)
Mineralizer Low Start1 October 2015... (October 2015)
Mixed oxidant Low Start6 September 2015Expert attention needed (September 2015), Reliable references lacking (October 2015), Promotional tone (September 2015), Too technical (September 2015), ... (June 2016)
Modelling of particle breakage Low Stub1 April 2011... (April 2011)
Molecular promiscuity Low Stub2 August 2007Sources lacking (August 2007), ... (February 2009)
Molybdovanadate reagent Low Stub2 March 2016Unsourced statements (March 2016), ... (June 2016)
Multipole density formalism Mid C2 March 2017Unsourced statements (March 2017), ... (March 2017)
N-Acylamides Low C2 March 2015Accuracy disputes or self-published (March 2015), ... (June 2016)
N-philes Low Stub1 April 2012... (April 2012)
NanoScale Corporation Low Start2 July 2016Dead external links (July 2016), ... (July 2017)
Natural deep eutectic solvents Low Stub1 April 2016... (April 2016)
Nicola Giordano Low Start3 August 2013Sources lacking (August 2013), Conflict of interest (August 2013), ... (August 2013)
Nik operon Low Start4 November 2013Reliable references lacking (December 2013), ... (November 2013), Notability unclear (December 2013), Introduction cleanup (December 2013)
Nils G. Walter Mid Start1 February 2017... (February 2017)
Nuclear magnetic resonance chemical shift re-referencing Mid Start1 May 2014... (May 2014)
OLI Analyzer Low Stub2 April 2009Notability unclear (April 2009), ... (January 2011)
Oilfield scale inhibition Low C1 December 2016... (December 2016)
Organic molecular tracers Low Start6 December 2009Expert attention needed (December 2009), Introduction cleanup (December 2009), Context needed (December 2009), ... (April 2010), Too technical (December 2009)
Organoclay Low Stub2 February 2009... (February 2009), References needed (September 2015)
Orthoacetic acid Low Stub1 May 2011... (May 2011)
Otto Liebermann Low C1 October 2013... (October 2013)
Overlapping distribution method Low Start1 February 2009... (February 2009)
Oxaprostaglandin Low Start1 April 2013... (April 2013)
Oxidation with chromium(VI)-amine complexes Mid C1 December 2011... (December 2011)
Oxidative dissolution of silver nanoparticles Low Start1 May 2016... (May 2016)
P123 Low Stub1 February 2009... (February 2009)
PHydrion Low Stub1 August 2012... (August 2012)
Paolo Samorì Low Start1 June 2014... (June 2014)
Path integrals in polymer science Low C1 August 2014... (August 2014)
Patrick Sung Low Stub1 December 2013... (December 2013)
Periodic current reversal Low Start2 January 2007Sources lacking (January 2007), ... (February 2009)
Phase transformation crystallography Low Stub2 July 2014... (July 2014), Wikilinks needed (June 2016)
Phenol oxidation with hypervalent iodine reagents Low C1 May 2015... (May 2015)
Philip P. Cohen Low Stub1 December 2011... (December 2011)
Philip S. Portoghese Low Start1 June 2011... (June 2011)
Philippe Guyot-Sionnest Low Stub3 August 2010Reliable references lacking (September 2010), ... (August 2010), BLP articles lacking sources (September 2010)
Phosphinoimidate Low Start1 April 2013... (April 2013)
Phosphonium coupling Low Start4 March 2012Expert attention needed (March 2012), Too technical (March 2012), ... (February 2013)
Photocatalyst activity indicator ink Low C1 June 2014... (June 2014)
Plasma electrochemistry Low Stub1 June 2016... (June 2016)
Poly(hexamethylene carbonate) Low Stub1 December 2013... (December 2013)
Polyoxymethylene dimethyl ethers Low Stub1 June 2016... (June 2016)
Polypropylene polybenzyl isocyanate Low Stub2 February 2009... (February 2009), Sources lacking (May 2010)
Pressure-induced hydration Low Stub1 February 2015... (February 2015)
Principle of least motion Low Stub1 February 2009... (February 2009)
Pulsation reactor Low Start1 January 2014... (January 2014)
Purinones Low Stub1 February 2009... (February 2009)
Pyrromethene Low Stub2 April 2016Expansion needed (April 2016), ... (April 2016)
Raymond E. Zirkle Low Start1 June 2016... (June 2016)
Reactions of nitrile anions Low C1 July 2011... (July 2011)
Residual topology Low Stub1 October 2013... (October 2013)
RiboGreen Low Stub2 June 2007Sources lacking (June 2007), ... (February 2009)
Richard Handl Low Start1 September 2016... (September 2016)
Richard Stratt Low Stub1 January 2017... (January 2017)
Robert H. Christenson Low Stub5 November 2013Reliable references lacking (November 2013), ... (June 2016), Context needed (March 2018), Introduction cleanup (March 2018), Vague or ambiguous time (March 2018)
Roger D. Cone Low Start1 August 2017... (August 2017)
Roles of chemical elements Unknown List1 August 2014... (August 2014)
Roskamp reaction Low Start4 May 2017... (May 2017), Introduction cleanup (October 2017), Style editing needed (October 2017), References needed (October 2017)
Sanger–Black apparatus Unknown Unassessed2 July 2014... (August 2014), References needed (July 2014)
Saville reaction Low Stub1 February 2009... (February 2009)
Severinghaus electrode Low Stub2 March 2011In-text citations lacking (March 2011), ... (June 2016)
ShelXle Low Start1 March 2012... (March 2012)
Shell–Paques process Mid Start2 March 2008References needed (March 2008), ... (April 2011)
Shimon Schuldiner Low Start1 March 2017... (March 2017)
Shredding (disassembling genomic data) Low Stub1 February 2009... (February 2009)
Silicon alkoxide Low Stub2 December 2009Sources lacking (December 2009), ... (January 2011)
Silvicide Low Stub2 June 2011In-text citations lacking (June 2011), ... (June 2016)
Simultaneously extracted metals and Acid-volatile sulfide Low B1 June 2014... (June 2014)
Smart cosubstrate Low Start1 February 2017... (February 2017)
Soft chemistry Low Start3 April 2010Original research (April 2010), Expansion needed (May 2010), ... (September 2010)
Solid-state reaction route Low Start1 September 2010... (September 2010)
Solvated metal atom dispersion Unknown Stub2 April 2018... (April 2018), Categories needed (April 2018)
Static fatigue Mid Start4 June 2017... (June 2017), Reliable references lacking (September 2017), Categories needed (September 2017), Style editing needed (September 2017)
Stereocontrolled 1,2-addition to carbonyl groups Low Stub1 May 2017... (May 2017)
Stoichiometric point Low Stub1 February 2009... (February 2009)
Super-oxidized solution Low Start1 September 2017... (September 2017)
Supercritical adsorption Low C1 February 2009... (February 2009)
Superloy Low Start2 February 2009... (February 2009), Sources lacking (December 2009)
Superoxidant Low Stub1 September 2013... (September 2013)
Supertherm Low Stub2 October 2014Reliable references lacking (January 2015), ... (October 2014)
Surface chemistry of cooking Low C2 October 2013... (October 2013), Unsourced statements (January 2016)
Synergistic catalysis Low C1 February 2016... (February 2016)
Sílvia Osuna Oliveras Low Start1 January 2017... (January 2017)
Tabula Affinitatum Low Stub1 October 2016... (October 2016)
Temperature salinity diagram Low Stub1 December 2012... (December 2012)
Tetra-amido macrocyclic ligand Low Stub1 February 2009... (February 2009)
Thermolabile protecting groups Low Stub2 August 2013Clarification needed (August 2013), ... (October 2015)
Thiacalixarene Low Stub2 February 2009... (February 2009), Sources lacking (December 2009)
Thiol-ene reaction Low C1 August 2015... (August 2015)
Thioselenide Low Stub2 September 2008Sources lacking (September 2008), ... (February 2009)
Thomas Welton Low Stub1 August 2015... (August 2015)
Throughput rate Low Stub2 February 2009... (February 2009), Wikilinks needed (July 2015)
Tissue residue Low B1 July 2013... (July 2013)
Topotactic transition Low Stub1 December 2015... (December 2015)
Toxic unit Unknown Start2 March 2018Expansion needed (March 2018), ... (March 2018)
Trace Metal Detection Test Low Start1 May 2011... (May 2011)
Transport length Low Stub1 January 2011... (January 2011)
Tropocoronand ligand Low C1 August 2017... (August 2017)
UV pinning Low Start2 February 2009... (February 2009), In-text citations lacking (November 2010)
Undersaturation Low Stub1 August 2014... (August 2014)
WRKY transcription factor Low B1 December 2015... (December 2015)
Wax emulsion Low Stub2 June 2016References needed (June 2016), ... (June 2016)
Webster's reagent Mid Stub1 February 2009... (February 2009)
Weighing bottle Mid Stub1 January 2011... (January 2011)
Wet electrons Low Stub1 January 2011... (January 2011)
XMD Low Stub1 June 2012... (June 2012)
Zdenek Herman Unknown Unassessed2 August 2017... (August 2017), Wikilinks needed (August 2017)

Wikilinks needed (30)

ArticleImportanceClassCount OldestIssues
Benzylic activation and stereocontrol in tricarbonyl(arene)chromium complexes Low C1 September 2013... (September 2013)
Clifford Leznoff Low Stub1 February 2017... (February 2017)
Cobalt(II)–porphyrin catalysis Low Start6 April 2017Expert attention needed (April 2017), Too technical (April 2017), Orphaned (April 2017), ... (May 2017), Reliable references lacking (May 2017)
College of Chemical Sciences Low Stub4 June 2011References needed (June 2011), Coordinates needed, Conflict of interest (June 2011), ... (January 2015)
Cone calorimeter Low Start6 April 2013Cleanup needed (April 2013, April 2013), Peacock terms (May 2014), Promotional tone (May 2014), ... (May 2014), Reference cleanup (May 2014)
Crystal structure of boron-rich metal borides (data page) Low List1 March 2017... (March 2017)
Demonstration plant Low Start2 April 2016In-text citations lacking (April 2016), ... (April 2016)
Diketopyrrolopyrrole dye Low Stub4 June 2016Expert attention needed (June 2016), References needed (January 2017), ... (January 2017)
Drug Master File Low Start2 May 2009In-text citations lacking (May 2009), ... (November 2012)
Electrophilic substitution of unsaturated silanes Low C2 August 2017Orphaned (August 2017), ... (August 2017)
Emergency eyewash and safety shower station Low Start1 March 2018... (March 2018)
Gary Keck Low Stub1 February 2017... (February 2017)
Grote–Hynes theory Low Stub4 August 2015References needed (August 2015), Reliable references lacking (August 2015), Orphaned (August 2015), ... (September 2015)
Imine Diels–Alder reaction Low C2 April 2013... (April 2013), Orphaned (August 2013)
Inductive cleavage Low Stub2 April 2013Orphaned (April 2013), ... (September 2015)
Institute for the History of Aluminium Low Stub2 July 2008References needed (July 2008), ... (June 2016)
Intramolecular Heck reaction Mid C1 August 2017... (August 2017)
Jahres-Bericht über die Fortschritte der chemischen Technologie für Fabrikanten, Chemiker, Pharmaceuten, Hütten- und Forstleute und Cameralisten Low Stub4 October 2013... (December 2013), Orphaned (October 2013), Notability unclear (September 2016), Sources lacking (September 2016)
Janet Kreizman Low Stub3 November 2013... (December 2013), Orphaned (November 2013), BLP articles lacking sources (June 2016)
Klopman-Salem equation Low Start1 March 2018... (March 2018)
LFER solvent coefficients (data page) Low List1 January 2015... (January 2015)
Lithium hybrid organic battery Low Start5 April 2015Expert attention needed (April 2015), Orphaned (April 2015), Too technical (April 2015), ... (June 2015)
Lyotropy Unknown Start5 March 2018Expert attention needed (March 2018), Too technical (March 2018), ... (March 2018), Orphaned (March 2018)
Metal-phenolic network Low Stub4 February 2016Expert attention needed (February 2016), ... (February 2016), Too technical (February 2016)
Phase transformation crystallography Low Stub2 July 2014Orphaned (July 2014), ... (June 2016)
Pittcon Editors' Awards Low Start4 January 2012Conflict of interest (January 2012), ... (May 2013), Reliable references lacking (March 2018), References needed (March 2018)
Synthesizing unit Low Start2 May 2009Notability unclear (May 2009), ... (November 2013)
Tables of Physical and Chemical Constants and Some Mathematical Functions Low Stub1 October 2014... (October 2014)
Throughput rate Low Stub2 February 2009Orphaned (February 2009), ... (July 2015)
Zdenek Herman Unknown Unassessed2 August 2017Orphaned (August 2017), ... (August 2017)

Neutrality

Autobiographical articles (2)

ArticleImportanceClassCount OldestIssues
Morten P. Meldal Low Start2 March 2009Notability unclear (March 2009), ... (November 2013)
Sourav Pal Low Start3 June 2010Peacock terms (June 2010), BLP articles lacking sources (June 2010), ... (June 2010)

Conflict of interest (20)

ArticleImportanceClassCount OldestIssues
Arabinogalactan Low Start3 December 2011Unsourced statements (December 2011, August 2016), ... (November 2016)
Bioactive paper Low Start3 July 2009References needed (July 2009), In-text citations lacking (August 2009), ... (July 2009)
College of Chemical Sciences Low Stub4 June 2011References needed (June 2011), Coordinates needed, ... (June 2011), Wikilinks needed (January 2015)
Curt Wittig Low Start5 June 2010Cleanup needed (May 2011, May 2011), Orphaned (June 2010), BLP articles lacking sources (May 2011), ... (May 2011)
Diamond Foundry Low Stub2 March 2018... (March 2018), Promotional tone (March 2018)
Evaporation suppressing monolayers Low C2 March 2014Unsourced statements (March 2014), ... (March 2014)
Flamelet generated manifold Low Stub5 August 2014References needed (August 2014), Clarification needed (November 2015), Notability unclear (November 2015), ... (November 2015), Disputed statements (November 2015)
Hydrophilic interaction chromatography Low Stub1 October 2015... (October 2015)
Ineos Mid Start1 April 2017... (April 2017)
Ionosilica Unknown Unassessed5 November 2015Expert attention needed (November 2015), Orphaned (November 2015), ... (November 2015), Reliable references lacking (April 2018)
John Katzenellenbogen Unknown Start1 December 2017... (December 2017)
Kim Janda Low Start1 July 2009... (July 2009)
Maurizio Prato (scientist) Low Start2 October 2016... (October 2016), Notability unclear (October 2016)
Nicola Giordano Low Start3 August 2013Sources lacking (August 2013), ... (August 2013), Orphaned (August 2013)
Pittcon Editors' Awards Low Start4 January 2012... (January 2012), Wikilinks needed (May 2013), Reliable references lacking (March 2018), References needed (March 2018)
Polyarc reactor Low C2 March 2018... (March 2018), Promotional tone (March 2018)
Qlucore Low Stub3 August 2016Promotional tone (August 2016), ... (December 2017), Peacock terms (December 2017)
Quantemol-DB Low Start7 April 2017... (April 2017), Peacock terms (April 2017), Reference cleanup (April 2017), Unsourced statements (July 2017), Merge needed (July 2017), Weasel-worded phrases (July 2017), Clarification needed (July 2017)
Sean Ekins Low Start1 November 2011... (November 2011)
Symbiosis (chemical) Low Start2 September 2009Style editing needed (September 2009), ... (September 2009)

Disputed statements (39)

ArticleImportanceClassCount OldestIssues
Alkalinity Low C2 February 2015... (February 2015), Clarification needed (February 2015)
Amedeo Avogadro Mid C2 May 2008In-text citations lacking (May 2008), ... (March 2016)
Binary acid Low Stub3 September 2009Unsourced statements (September 2009, January 2015), ... (January 2015)
Bound state Low Start3 February 2015Clarification needed (February 2015), Unsourced statements (November 2016), ... (November 2016)
Chalcogen Mid C5 September 2014Unsourced statements (September 2014, August 2017), Expansion needed (September 2014, August 2016), ... (September 2014)
Charge-shift bond Mid C1 August 2015... (August 2015)
Chemical warfare Mid C6 April 2010Unsourced statements (November 2010, April 2010, April 2017), Weasel-worded phrases (November 2010), ... (May 2015), Dead external links (May 2016)
Chlorofluorocarbon High B5 April 2010Unsourced statements (March 2011, March 2018), ... (April 2010), Clarification needed (June 2013), References needed (February 2015)
Combustion High C3 July 2016... (July 2016), Accuracy disputes or self-published (July 2016), References needed (January 2017)
Conformational isomerism Mid Start2 July 2014Clarification needed (July 2014), ... (July 2014)
Criegee oxidation Low Start1 April 2017... (April 2017)
Dispersion (chemistry) Mid Start3 December 2013References needed (December 2013), Clarification needed (November 2014), ... (February 2018)
Enol High C8 October 2010Unsourced statements (October 2010, July 2015), Clarification needed (October 2010, July 2015), References needed (July 2015), Expansion needed (July 2015), Reliable references lacking (July 2015), ... (July 2015)
Enthalpy of vaporization High C2 March 2016Reference cleanup (March 2016), ... (April 2017)
Ethylmercury Low Start5 February 2017Expansion needed (February 2017), ... (February 2017), Update needed (February 2017), Factual verification needed (February 2017), Unsourced statements (February 2017)
Exothermic process Mid Start3 March 2015Clarification needed (March 2015), ... (March 2015), Failed verification (January 2018)
Flamelet generated manifold Low Stub5 August 2014References needed (August 2014), Clarification needed (November 2015), Notability unclear (November 2015), Conflict of interest (November 2015), ... (November 2015)
History of the Haber process Mid C3 September 2011Expansion needed (September 2011), Unsourced statements (October 2017), ... (October 2017)
Hydroxide Top C3 January 2013Unsourced statements (January 2013, November 2014), ... (November 2014)
Ioannis Katsoyiannis Unknown Start1 March 2018... (March 2018)
Island of stability Mid B1 July 2012... (July 2012)
Jeremias Benjamin Richter Low Start4 November 2009In-text citations lacking (November 2009, January 2014), CS1 errors: dates, ... (April 2014)
Lipid polymorphism Low Start2 January 2015Clarification needed (January 2015), ... (January 2015)
Lithium-ion battery Low C16 June 2010Detailed references needed, Potentially dated statements (2017, January 2014, 2016), ... (June 2010), Unsourced statements (June 2014, September 2016, October 2017, February 2018), Dead external links (November 2015), Reliable references lacking (August 2014, November 2016), Failed verification (November 2013, February 2016, December 2016, February 2018)
Magnetic quantum number Mid Start2 May 2016References needed (May 2016), ... (May 2016)
Malaprade reaction Low Stub1 April 2017... (April 2017)
Modified starch Low Start3 May 2010References needed (May 2010), Unsourced statements (January 2011), ... (January 2011)
Molecular dynamics Top B3 April 2009Unsourced statements (April 2009, December 2017), ... (July 2017)
Oxalate Mid Start5 September 2009Unsourced statements (January 2010, April 2015, July 2017), ... (September 2009, October 2014)
Paracelsus High C6 June 2017Unsourced statements (June 2017), ... (June 2017), Clarification needed (August 2017), Cleanup needed (January 2018, January 2018), Dead external links (March 2018)
Pictet–Spengler reaction Low B2 November 2010Unsourced statements (November 2010), ... (November 2010)
Pnictogen hydride Mid C1 September 2016... (September 2016)
Polylactic acid Low C1 June 2015... (June 2015)
Propellant Unknown Unassessed2 January 2010References needed (March 2012), ... (January 2010)
Standard atomic weight Mid C2 January 2014... (January 2014), Dead external links (March 2018)
Structural isomer High Start2 November 2014References needed (November 2014), ... (November 2014)
Superhydrophobic coating Low C6 June 2013Unsourced statements (February 2015, June 2013, February 2014, July 2014), Weasel-worded phrases (July 2014), ... (July 2014)
Surface tension Mid GA2 March 2015... (March 2015), Clarification needed (May 2016)
Tar Mid C1 April 2018... (April 2018)

Limited geographic scope (6)

ArticleImportanceClassCount OldestIssues
Biomonitoring Mid C6 April 2012Page number citations needed (April 2012), Unsourced statements (April 2016), Expansion needed (April 2016), ... (April 2016), Reliable references lacking (April 2016), Vague or ambiguous geographic scope (April 2016)
Chartered Chemist Low Stub2 March 2013In-text citations lacking (March 2013), ... (April 2016)
Chemical weapon Mid C6 July 2012Potentially dated statements (2017, 2016, June 2016), Unsourced statements (July 2012, April 2017), ... (December 2012)
Hydrogen safety Low Start2 July 2011... (July 2011), References needed (November 2014)
Pharmaceutical industry Mid C4 June 2015Unsourced statements (November 2015, June 2015), Clarification needed (June 2015), ... (August 2015)
Wood preservation Low Start5 May 2010Unsourced statements (May 2010, December 2012, March 2014), ... (March 2014), Minor POV problems (March 2014)

Minor POV problems (2)

ArticleImportanceClassCount OldestIssues
American Chemical Society Mid C1 October 2017... (October 2017)
Wood preservation Low Start5 May 2010Unsourced statements (May 2010, December 2012, March 2014), Limited geographic scope (March 2014), ... (March 2014)

NPOV disputes (3)

ArticleImportanceClassCount OldestIssues
Combinatorial chemistry Top Start4 November 2012Unsourced statements (November 2012, June 2014), Expansion needed (June 2014), ... (June 2014)
Gulal Low C4 June 2016Unsourced statements (June 2016, March 2017), ... (June 2016), References needed (October 2016)
Minnesota functionals Low Start2 August 2016Unsourced statements (August 2016), ... (March 2017)

Original research (32)

ArticleImportanceClassCount OldestIssues
ACS Chemical Neuroscience Low C1 February 2011... (February 2011)
Acrylic paint Low Start2 November 2009References needed (November 2009), ... (June 2010)
Alkyne trimerisation Mid C2 April 2015Unsourced statements (April 2015), ... (April 2015)
Ballotechnics Low Start2 February 2015References needed (February 2015), ... (February 2015)
Borderline hydrides Mid C2 November 2010Unsourced statements (November 2010), ... (September 2013)
Catalytically competent protonation state Low Start4 June 2010Expert attention needed (June 2010), Sources lacking (June 2010), ... (June 2010)
Chemical stability Mid Start1 April 2017... (April 2017)
Chromatography in blood processing Low Start4 September 2008In-text citations lacking (April 2009, September 2008), ... (September 2008), Introduction cleanup (April 2013)
Color of chemicals Mid Start2 January 2008References needed (January 2008), ... (November 2010)
Electrolytic cell Low Start3 December 2009Sources lacking (December 2009), ... (November 2017), Style editing needed (November 2017)
Flame High B2 September 2009... (September 2009), Unsourced statements (April 2012)
Heat capacity High C6 August 2008Unsourced statements (August 2008, April 2010, February 2015), References needed (October 2015, February 2015), ... (February 2011)
Henderson–Hasselbalch equation Mid C4 February 2017Expert attention needed (February 2017), ... (February 2017), References needed (February 2017)
Hot plate Low Start3 October 2010References needed (October 2010, September 2013), ... (September 2013)
Hydrolysis Top C2 April 2017References needed (April 2017), ... (April 2017)
Inorganic compound High Start3 June 2014Unsourced statements (March 2016), Style editing needed (June 2014), ... (June 2014)
Liquid Top B4 October 2014References needed (October 2014), ... (October 2014), Unsourced statements (June 2017, July 2017)
List of chemical compounds with unusual names Mid List2 November 2013Unsourced statements (November 2013), ... (August 2017)
List of reagents Mid List1 November 2014... (November 2014)
Monolithic HPLC column Low Start6 January 2011Style editing needed (January 2011), Unsourced statements (April 2015), BLP articles lacking sources (June 2014), ... (June 2014), Dead external links (April 2015), Reliable references lacking (September 2015)
Neutronium Low Start5 February 2013Reliable references lacking (February 2013), ... (February 2013), Clarification needed (April 2013), Unsourced statements (February 2017, June 2017)
Non-proteinogenic amino acids Mid C1 September 2013... (September 2013)
Nuclear magnetic resonance spectra database Low Start2 March 2012... (March 2012), References needed (June 2016)
Parafilm Low Stub3 November 2011Unsourced statements (April 2012), References needed (November 2011), ... (November 2011)
Peptide synthesis High C9 November 2016Obsolete information (November 2016), Unsourced statements (November 2016, January 2018, May 2018), Reliable references lacking (November 2016), ... (November 2016), Factual verification needed (November 2016), References needed (November 2016, June 2017)
Plumber's putty Low Stub2 October 2013... (October 2013), References needed (June 2016)
Q-carbon Low Start5 December 2015Expert attention needed (January 2017), ... (December 2015), Clarification needed (January 2017), Dead external links (April 2018)
Sabatier reaction Mid Start3 July 2013Unsourced statements (July 2013, March 2014), ... (March 2014)
Soft chemistry Low Start3 April 2010... (April 2010), Expansion needed (May 2010), Orphaned (September 2010)
Spencer Silver Low Start2 October 2009... (October 2009), BLP articles lacking sources (October 2009)
Wet nanotechnology Low Start4 May 2012Style editing needed (May 2012), ... (May 2012), Citation with bare URL, Citation lacking title
Zeolitic imidazolate framework Low Start1 May 2017... (May 2017)

Peacock terms (10)

ArticleImportanceClassCount OldestIssues
Charles Coulson Mid Start1 October 2017... (October 2017)
Cone calorimeter Low Start6 April 2013Cleanup needed (April 2013, April 2013), ... (May 2014), Promotional tone (May 2014), Wikilinks needed (May 2014), Reference cleanup (May 2014)
DNA computing Low C4 June 2015Unsourced statements (June 2015), Dead external links (July 2015), ... (September 2015), Weasel words (September 2015)
John Bockris Low Start3 May 2015References needed (September 2015), Reference cleanup (May 2015), ... (September 2015)
Joseph Thomas Walker Low Start3 March 2015References needed (March 2015), Orphaned (May 2015), ... (March 2015)
Klaus-Dieter Hungenberg Low Start5 September 2013Reliable references lacking (November 2013), Orphaned (September 2013), ... (November 2013), Reference errors, Dead external links (May 2017)
Photocatalytic water splitting Mid C3 April 2012Unsourced statements (April 2012), ... (May 2012), Reliable references lacking (January 2017)
Qlucore Low Stub3 August 2016Promotional tone (August 2016), Conflict of interest (December 2017), ... (December 2017)
Quantemol-DB Low Start7 April 2017Conflict of interest (April 2017), ... (April 2017), Reference cleanup (April 2017), Unsourced statements (July 2017), Merge needed (July 2017), Weasel-worded phrases (July 2017), Clarification needed (July 2017)
Sourav Pal Low Start3 June 2010... (June 2010), BLP articles lacking sources (June 2010), Autobiographical articles (June 2010)

Promotional tone (22)

ArticleImportanceClassCount OldestIssues
Amco Batteries Low Start2 August 2016... (August 2016), Unsourced statements (February 2018)
Assugrin Low Start1 May 2015... (May 2015)
Biobor Low Start2 June 2010References needed (June 2010), ... (August 2011)
Cone calorimeter Low Start6 April 2013Cleanup needed (April 2013, April 2013), Peacock terms (May 2014), ... (May 2014), Wikilinks needed (May 2014), Reference cleanup (May 2014)
Diamond Foundry Low Stub2 March 2018Conflict of interest (March 2018), ... (March 2018)
Drugwipe test Low Start1 February 2017... (February 2017)
Eurokin Low Stub3 October 2010Reliable references lacking (October 2010), ... (October 2010), Orphaned (October 2010)
Firefighting foam Mid Start3 February 2015Detailed references needed, Potentially dated statements (2017), ... (February 2015)
HORTON (software) Low Stub3 June 2015Sources lacking (June 2015), Notability unclear (June 2015), ... (June 2015)
Jaguar (software) Low Stub2 October 2013Notability unclear (October 2013), ... (October 2013)
Jerome J. Workman Jr. Low Start4 October 2013Dead external links (October 2013), Citation with bare URL, Citation lacking title, ... (January 2015)
Kaneka Corporation Low Start1 May 2015... (May 2015)
Makhluf Haddadin Low Start3 November 2017... (November 2017), Unsourced statements (November 2017), BLP articles lacking sources (November 2017)
Mixed oxidant Low Start6 September 2015Expert attention needed (September 2015), Reliable references lacking (October 2015), ... (September 2015), Too technical (September 2015), Orphaned (June 2016)
PRO/II Low Stub2 August 2009Notability unclear (August 2009), ... (January 2012)
Polyarc reactor Low C2 March 2018Conflict of interest (March 2018), ... (March 2018)
Polybenzimidazole fiber Low Start4 August 2013Unsourced statements (August 2013, November 2014), ... (May 2014), DOIs inactive (2017)
Pseudo palladium Low Start1 December 2016... (December 2016)
Qlucore Low Stub3 August 2016... (August 2016), Conflict of interest (December 2017), Peacock terms (December 2017)
Roy A. Periana Low Start4 July 2012Vague or ambiguous time (July 2012), Cleanup needed (July 2012), Prose needed (July 2012), ... (August 2014)
Santoprene Low Start1 November 2014... (November 2014)
Valerie Ashby Low Start6 April 2016Introduction cleanup (April 2016), ... (April 2016), Reliable references lacking (April 2016), BLP articles lacking sources (August 2016), Unsourced statements (April 2018), References needed (April 2018)

Spam cleanup (5)

ArticleImportanceClassCount OldestIssues
Cheminformatics Mid Start2 June 2013External link cleanup (June 2013), ... (June 2013)
Matthew Linford Low Start4 April 2012BLP articles lacking sources (April 2012), Style editing needed (April 2012), External link cleanup (December 2012), ... (December 2012)
Measurement uncertainty Mid Start2 December 2014... (December 2014), Unsourced statements (December 2015)
Quantum Monte Carlo Low Start2 October 2016... (October 2016), External link cleanup (October 2016)
Simplified molecular-input line-entry system Low Start2 September 2012External link cleanup (September 2012), ... (September 2012)

Viewpoints needed (2)

ArticleImportanceClassCount OldestIssues
Herbicide High C11 1992Potentially dated statements (1992), References needed (August 2011), Unsourced statements (August 2011, June 2014, January 2015, May 2017), Weasel-worded phrases (July 2010, December 2012), Page number citations needed (January 2013), Expansion needed (December 2015), ... (October 2015)
Paraben Mid C2 December 2015Unsourced statements (December 2015), ... (January 2018)

Weasel-worded phrases (58)

ArticleImportanceClassCount OldestIssues
Acyl group High Start1 January 2014... (January 2014)
American Chemistry Council Low Start3 December 2008References needed (December 2008), Unsourced statements (October 2011), ... (October 2011)
BKChem Low Stub3 August 2011Reliable references lacking (August 2011), ... (January 2014), Notability unclear (May 2015)
Benzhydryl compounds Mid Stub1 January 2016... (January 2016)
Binary compounds of hydrogen Mid Start1 November 2015... (November 2015)
Black liquor Low Start4 June 2009Unsourced statements (June 2009, August 2013), Dead external links (October 2010), ... (April 2013)
Bond hardening Low Start2 May 2017Unsourced statements (May 2017), ... (May 2017)
Bromley equation Low Start1 December 2015... (December 2015)
Cahn–Ingold–Prelog priority rules Mid Start3 February 2016Unsourced statements (February 2016), References needed (February 2016), ... (February 2016)
Carbon–hydrogen bond activation Mid C1 December 2013... (December 2013)
Charles Sanders Peirce Low B1 March 2013... (March 2013)
Charring Low Start3 October 2009Sources lacking (October 2009), Unsourced statements (October 2014), ... (October 2014)
Chemical ecology Low Stub8 March 2017Detailed references needed, Expert attention needed (March 2017), Unsourced statements (March 2017), ... (March 2017), Self-contradictory articles (March 2017), Clarification needed (March 2017), Reliable references lacking (March 2017)
Chemical industry Mid Start5 June 2008References needed (June 2009), Unsourced statements (June 2008, May 2010), ... (November 2010), Introduction cleanup (December 2015)
Chemical warfare Mid C6 April 2010Unsourced statements (November 2010, April 2010, April 2017), ... (November 2010), Disputed statements (May 2015), Dead external links (May 2016)
Clyde cancer cluster Low Start2 December 2017CS1 errors: dates, ... (December 2017)
Creosote Low B8 October 2016Failed verification (October 2016), Unsourced statements (January 2017, February 2017, December 2017, January 2018), ... (January 2017), Vague or ambiguous geographic scope (January 2017), Vague or ambiguous time (December 2017)
Derek Barton High Start3 December 2015Unsourced statements (December 2015), Vague or ambiguous time (December 2015), ... (December 2015)
Effective molarity Low Stub3 June 2016Unsourced statements (June 2016), Clarification needed (June 2016), ... (June 2016)
Electroanalytical methods High Start2 December 2016Unsourced statements (December 2016), ... (December 2016)
Energy level High Start3 December 2009References needed (December 2009), ... (January 2014), Clarification needed (May 2014)
Extended periodic table Low B7 April 2011Expert attention needed (December 2011), Unsourced statements (February 2012), Potentially dated statements (April 2011), ... (October 2011, May 2018), Dead external links (October 2016)
Force field (chemistry) Mid C5 May 2010Unsourced statements (May 2010, August 2012, December 2017), ... (May 2010), References needed (December 2017)
Functionalized polyolefins Mid Start5 March 2016Expert attention needed (March 2016), Reliable references lacking (March 2016), ... (March 2016), Orphaned (May 2016)
Galvanization Mid Start8 May 2012References needed (May 2012), Unsourced statements (March 2013, February 2017, November 2017, March 2018), ... (March 2013), Clarification needed (February 2017, November 2017)
Gaseous signaling molecules High B4 September 2013Unsourced statements (September 2013, February 2014), ... (September 2013), Expansion needed (March 2016)
Globally Harmonized System of Classification and Labelling of Chemicals Mid Start7 May 2008Style editing needed (May 2008), In-text citations lacking (September 2013), Dead external links (September 2016), Vague or ambiguous time (February 2017), Unsourced statements (February 2017), ... (February 2017), References needed (February 2017)
Glycoprotein High Start3 December 2007Unsourced statements (December 2007, March 2017), ... (March 2017)
Gold cyanidation Low C2 February 2012... (February 2012), Unsourced statements (April 2017)
Herbicide High C11 1992Potentially dated statements (1992), References needed (August 2011), Unsourced statements (August 2011, June 2014, January 2015, May 2017), ... (July 2010, December 2012), Page number citations needed (January 2013), Expansion needed (December 2015), Viewpoints needed (October 2015)
Higher alkanes Low Start1 January 2013... (January 2013)
Ilya Prigogine High C5 October 2010Unsourced statements (March 2012, March 2015, April 2017), In-text citations lacking (October 2010), ... (December 2013)
Industrial Bio-Test Laboratories Low C2 February 2013... (February 2013), Page number citations needed (February 2013)
Keck asymmetric allylation Mid C2 July 2017... (July 2017), Orphaned (August 2017)
Leo Paquette Low Start7 January 2016Reliable references lacking (January 2016), Unsourced statements (January 2016), ... (January 2016), BLP articles lacking sources (April 2016, January 2016), Factual verification needed (January 2016), Vague or ambiguous time (January 2016)
List of unsolved problems in chemistry Low List8 November 2011References needed (December 2014), Expert attention needed (November 2011), Accuracy disputes or self-published (November 2011), Unsourced statements (December 2014), Reliable references lacking (December 2014), ... (December 2014), Factual verification needed (December 2014)
Nanocellulose High B9 May 2013Unsourced statements (October 2014, March 2017), Clarification needed (May 2013, March 2017), CS1 errors: external links, Page number citations needed (March 2017), ... (March 2017), Reliable references lacking (March 2017), Dead external links (February 2018)
Natalie Ahn Low Stub1 December 2016... (December 2016)
New car smell Low Start1 October 2017... (October 2017)
Noble gas compound Mid C9 January 2015Cleanup needed (January 2015, January 2015), References needed (January 2015), Expansion needed (January 2015), Reliable references lacking (January 2015), Unsourced statements (January 2015), ... (January 2015), Vague or ambiguous time (January 2015), Factual verification needed (January 2015)
Nuclear transmutation Low C2 March 2014Unsourced statements (February 2016), ... (March 2014)
Organophosphate High C5 March 2017Unsourced statements (March 2017, March 2018), ... (March 2017), Clarification needed (March 2017), Failed verification (March 2018)
Oxidative coupling of methane Low Start2 September 2013Unsourced statements (September 2013), ... (September 2013)
PQS (chemical) Low Stub1 April 2017... (April 2017)
Petrochemical High Start1 May 2018... (May 2018)
Phlogiston theory Mid B1 December 2017... (December 2017)
Polyfluorene Low C1 September 2011... (September 2011)
Quantemol-DB Low Start7 April 2017Conflict of interest (April 2017), Peacock terms (April 2017), Reference cleanup (April 2017), Unsourced statements (July 2017), Merge needed (July 2017), ... (July 2017), Clarification needed (July 2017)
Saran (plastic) Mid Start1 April 2015... (April 2015)
Scientific method Top B1 December 2016... (December 2016)
Steel High GA5 October 2015Vague or ambiguous time (October 2015), Clarification needed (April 2016), ... (October 2016), Unsourced statements (January 2017, March 2018)
Superhydrophobic coating Low C6 June 2013Unsourced statements (February 2015, June 2013, February 2014, July 2014), ... (July 2014), Disputed statements (July 2014)
Tetraanthraporphyrin Low Start4 February 2014Unsourced statements (February 2014), Introduction cleanup (February 2014), ... (February 2014), Context needed (February 2014)
Total synthesis Mid Start5 August 2015Expert attention needed (March 2017), Unsourced statements (August 2015), ... (March 2017), Vague or ambiguous time (March 2017)
Tributyltin Mid Start3 July 2016Dead external links (July 2016), Unsourced statements (July 2017), ... (July 2017)
Water vapor Mid B4 June 2017Citation with bare URL, Citation lacking title, CS1 errors: dates, ... (June 2017)
Windshield washer fluid Low Start7 June 2010Detailed references needed, Unsourced statements (August 2010, November 2010), Clarification needed (June 2010), References needed (January 2016), ... (January 2016), In-text citations lacking (January 2017)
Young–Laplace equation High Start1 April 2012... (April 2012)

References

Accuracy disputes or self-published (14)

ArticleImportanceClassCount OldestIssues
Battery regenerator Low Start2 November 2017Sources lacking (November 2017), ... (November 2017)
Combustion High C3 July 2016Disputed statements (July 2016), ... (July 2016), References needed (January 2017)
Cyrillization of chemical nomenclature Mid Start3 December 2017References needed (December 2017), Expansion needed (December 2017), ... (December 2017)
Debye–Hückel equation Mid B5 2007Potentially dated statements (2007), Dead external links (December 2016, January 2018), ... (May 2018), Expansion needed (May 2018)
Detection limit Mid C4 January 2016Expert attention needed (January 2016), References needed (January 2016), ... (January 2016)
Energy harvesting Low B3 February 2011Factual verification needed (February 2011), ... (February 2014), Unsourced statements (August 2016)
Entropy (energy dispersal) Low C4 June 2013Unsourced statements (June 2013, March 2018), ... (June 2013), Merge needed (May 2018)
Epimer Mid Start1 June 2015... (June 2015)
Hypereutectic piston Low Start3 September 2009Sources lacking (November 2009), ... (September 2009), Unsourced statements (November 2016)
List of unsolved problems in chemistry Low List8 November 2011References needed (December 2014), Expert attention needed (November 2011), ... (November 2011), Unsourced statements (December 2014), Reliable references lacking (December 2014), Weasel-worded phrases (December 2014), Factual verification needed (December 2014)
N-Acylamides Low C2 March 2015... (March 2015), Orphaned (June 2016)
Oxo Biodegradable Low Start3 January 2014Cleanup needed (January 2014, January 2014), ... (June 2014)
Refrigerant Low C6 May 2013Unsourced statements (December 2013, August 2015, March 2018), References needed (December 2013), ... (May 2013), Dead external links (January 2017)
Triethyltin Low Stub1 March 2018... (March 2018)

BLP articles lacking sources (56)

ArticleImportanceClassCount OldestIssues
Alexandra Navrotsky Mid C2 February 2018Dead external links (February 2018), ... (April 2018)
Anthony F. Hill Low Start2 May 2010Reliable references lacking (May 2010), ... (May 2010)
Augustine Ong Low Stub1 June 2013... (June 2013)
Ayhan Ulubelen Low Start7 May 2012Detailed references needed, Unsourced statements (July 2013), ... (May 2012), Clarification needed (May 2012, July 2013), Vague or ambiguous time (July 2013), Dead external links (October 2016)
Bogumił Brzezinski Low Stub1 February 2013... (February 2013)
Colin Vincent Low Stub1 June 2010... (June 2010)
Curt Wittig Low Start5 June 2010Cleanup needed (May 2011, May 2011), Orphaned (June 2010), ... (May 2011), Conflict of interest (May 2011)
David S. Cafiso Low Start1 August 2009... (August 2009)
Denis Evans Low Start2 August 2015... (August 2015), In-text citations lacking (August 2015)
Efstratios N. Pistikopoulos Low Start2 June 2015... (June 2015), Orphaned (May 2016)
Faten Zahran Mohammed Low Stub2 January 2011... (January 2011), Dead external links (December 2016)
Gary E. Martin Low Start2 April 2011Reliable references lacking (April 2011), ... (April 2011)
George M. Martin Low Stub1 November 2009... (November 2009)
Germar Rudolf Low Stub4 October 2015... (October 2015), Reliable references lacking (October 2015), Factual verification needed (October 2015), Introduction cleanup (October 2015)
Gustavo Scuseria Low Stub3 May 2015Reliable references lacking (May 2015), ... (May 2015), Orphaned (June 2016)
Irina Beletskaya Low Stub1 November 2012... (November 2012)
Itamar Procaccia Low Stub1 July 2017... (July 2017)
James Bassham Low Stub1 September 2010... (September 2010)
Janet Kreizman Low Stub3 November 2013Wikilinks needed (December 2013), Orphaned (November 2013), ... (June 2016)
Jay Switzer (chemist) Low Stub3 January 2018Reliable references lacking (January 2018), ... (January 2018), Notability unclear (January 2018)
Jean Fréchet Low Stub1 February 2013... (February 2013)
Jean-Luc Brédas Mid Stub1 October 2016... (October 2016)
Jean-Marie Basset Low Stub2 March 2010... (March 2010), Unsourced statements (February 2014)
Jeehiun Lee Low Stub5 February 2009Orphaned (February 2009), ... (November 2012), Reliable references lacking (November 2012), Notability unclear (November 2012), Dead external links (March 2018)
Jesús Jiménez Barbero Low Stub3 May 2016Reliable references lacking (May 2016), In-text citations lacking (May 2016), ... (May 2016)
Jing Li (chemist) Low Start3 November 2012... (November 2012), Reliable references lacking (November 2012), In-text citations lacking (November 2012)
Joanna Fowler Mid Start3 November 2012Expansion needed (December 2012), ... (November 2012), In-text citations lacking (November 2012)
Joanna Maria Vandenberg Unknown Start1 August 2017... (August 2017)
John H. Seinfeld Low Stub1 October 2011... (October 2011)
Joyce Jacobson Kaufman Low Start1 November 2012... (November 2012)
Julia R. Burdge Low Start4 March 2011Reliable references lacking (March 2011), ... (March 2011, September 2012), Orphaned (September 2012)
Keith Hodgson Low Start1 February 2013... (February 2013)
Kenneth Karlin (chemist) Low Start6 May 2018... (May 2018), Notability unclear (May 2018), Categories needed (May 2018), Orphaned (May 2018), Dead external links (May 2018), Unsourced statements (May 2018)
Lars Walløe Low Start3 October 2011Cleanup needed (October 2011, October 2011), ... (March 2015)
Leo Paquette Low Start7 January 2016Reliable references lacking (January 2016), Unsourced statements (January 2016), Weasel-worded phrases (January 2016), ... (April 2016, January 2016), Factual verification needed (January 2016), Vague or ambiguous time (January 2016)
Makhluf Haddadin Low Start3 November 2017Promotional tone (November 2017), Unsourced statements (November 2017), ... (November 2017)
Mao Gao-wen Low Stub1 August 2009... (August 2009)
Mark Eberhart Low Stub2 January 2011Orphaned (January 2011), ... (February 2011)
Mark Ratner Low Start1 February 2013... (February 2013)
Matthew Linford Low Start4 April 2012... (April 2012), Style editing needed (April 2012), External link cleanup (December 2012), Spam cleanup (December 2012)
Michael Kasha Low Stub2 February 2013... (February 2013), Unsourced statements (August 2017)
Milton L. Lee Low Stub2 April 2014Reliable references lacking (April 2014), ... (April 2014)
Monolithic HPLC column Low Start6 January 2011Style editing needed (January 2011), Unsourced statements (April 2015), ... (June 2014), Original research (June 2014), Dead external links (April 2015), Reliable references lacking (September 2015)
Philippe Guyot-Sionnest Low Stub3 August 2010Reliable references lacking (September 2010), Orphaned (August 2010), ... (September 2010)
Piero Baglioni Low Start1 February 2013... (February 2013)
Roger Festa Low Stub2 May 2010Unsourced statements (May 2013), ... (May 2010)
Ryoo Ryong Low Start4 December 2011... (December 2011), Citation with bare URL, Citation lacking title, Dead external links (April 2018)
Seymour Ehrenpreis Low Stub2 October 2009Reliable references lacking (October 2009), ... (October 2009)
Sourav Pal Low Start3 June 2010Peacock terms (June 2010), ... (June 2010), Autobiographical articles (June 2010)
Spencer Silver Low Start2 October 2009Original research (October 2009), ... (October 2009)
Timothy F. Jamison Low Start2 December 2011... (December 2011), Unsourced statements (December 2013)
Tullio Ilomets Low Start2 April 2017Notability unclear (April 2017), ... (April 2017)
Valerie Ashby Low Start6 April 2016Introduction cleanup (April 2016), Promotional tone (April 2016), Reliable references lacking (April 2016), ... (August 2016), Unsourced statements (April 2018), References needed (April 2018)
Wilma Olson Low Start2 November 2012... (November 2012), Reliable references lacking (November 2012)
Yuri Berlin Unknown Unassessed2 April 2018... (April 2018), Unsourced statements (April 2018)
Yuri Lvov Low Start3 August 2017Vague or ambiguous time (August 2017), ... (August 2017), Unsourced statements (August 2017)

Broken or outdated citations (1)

ArticleImportanceClassCount OldestIssues
Diazenylium Low C2 November 2015... (November 2015), Dead external links (September 2017)

CS1 errors: chapter ignored (14)

ArticleImportanceClassCount OldestIssues
Desorption electrospray ionization Low B2 March 2018Unsourced statements (March 2018)
Fast protein liquid chromatography Low Start1
Flavonoid Mid Start1
Fluoride High C6 April 2015Unsourced statements (April 2015, July 2016, September 2017), Page number citations needed (July 2016), Dead external links (October 2017)
Henry Taube High GA1
Illite crystallinity Low Start1
LOLI Database Low Stub1
List of ions Mid List1
Ocean chemistry Low C1
Polychlorinated dibenzodioxins High B3 April 2007Unsourced statements (April 2007), Dead external links (March 2018)
Salinosporamide Low Stub1
Timeline of chemical element discoveries Mid C3 September 2010Dead external links (September 2010), Clarification needed (March 2018)
Vibrational circular dichroism Low Start1
Vinyldithiin Low Start1

CS1 errors: dates (58)

ArticleImportanceClassCount OldestIssues
Anne Hiltner Unknown Start1
Arie Jan Haagen-Smit Low Start1
Barettin Low Stub1
Bruce J. Tromberg Low Start2 Web citation with no URL
Buckypaper Low B2 CS1 errors: invisible characters
Carbon farming Unknown Unassessed1
Chemistry Top B3 July 2010Reliable references lacking (July 2010), References needed (September 2014)
Chemophobia Low Start1
Christy Haynes Low Start1
Clyde cancer cluster Low Start2 December 2017Weasel-worded phrases (December 2017)
Continuous foam separation Low C1
Copper indium gallium selenide solar cells Low C1
Core–shell semiconductor nanocrystal Low C1
Cubosome Low Start2 April 2016Orphaned (April 2016)
Davis–Beirut reaction Low Stub1
Deoxidized steel Low Start1
Duralumin Low Start1
Emixustat Low C1
Filter press Low C2 July 2017Clarification needed (July 2017)
Friedrich Oskar Giesel Low C1
Galvanic cell Mid C1
Galvanic corrosion Mid C2 January 2011Page number citations needed (January 2011)
High-level radioactive waste management Low GA2 May 2016Update needed (May 2016)
History of chemistry High B7 August 2007Unsourced statements (August 2007, June 2008, May 2010, August 2012), Factual verification needed (June 2010), Web citation with no URL
Hydrothermal liquefaction Low Stub1
Jeremias Benjamin Richter Low Start4 November 2009In-text citations lacking (November 2009, January 2014), Disputed statements (April 2014)
Jones oxidation Mid C1
Lisa McElwee-White Low Start1
M. Vijayan Low Start1
Marcus theory Mid C2 June 2017Dead external links (June 2017)
Mass attenuation coefficient Mid Start1
Materials science High C1
Mechanochemistry Low Start1
Metal–organic framework Mid B4 Citation with bare URL, Citation lacking title, URL error
Molecular sieve Mid Start2 February 2014Unsourced statements (February 2014)
Muhammad ibn Zakariya al-Razi Low C7 November 2010Unsourced statements (October 2012, November 2016), References needed (May 2012), Factual verification needed (November 2010), Web citation with no URL, Dead external links (December 2017)
Nickel titanium Mid Start2 January 2017Clarification needed (January 2017)
Nuclear isomer Mid C2 August 2009Unsourced statements (August 2009)
Oxygen fluoride Low Stub1
Oxygen scavenger Mid C2 July 2014Expansion needed (July 2014)
Paint stripper Low Start3 May 2013Unsourced statements (May 2013), References needed (June 2013)
Photopolymer Low C2 March 2018Dead external links (March 2018)
Polarizable continuum model Low Start1
Polybrominated diphenyl ethers Mid C4 September 2011Unsourced statements (May 2013), Dead external links (September 2011, March 2018)
Quaternary ammonium cation Mid Start4 January 2013Unsourced statements (January 2013, September 2015), Clarification needed (August 2014)
Riemschneider thiocarbamate synthesis Low Stub1
Rotational spectroscopy Mid C1
Schikorr reaction Low C1
Single-molecule magnet Low B1
Spin chemistry Low Stub1
Surface-tension values Low List1
Thiourea organocatalysis Low Start1
Torbern Bergman Mid Start1
Vanadium redox battery Low C3 March 2016Unsourced statements (March 2016), Dead external links (March 2017)
Vaporized hydrogen peroxide Low Start1
Vortex mixer Mid Start1
Water vapor Mid B4 June 2017Citation with bare URL, Citation lacking title, Weasel-worded phrases (June 2017)
Zinc–air battery Mid C3 June 2009Unsourced statements (June 2009), Citation with accessdate and no URL

CS1 errors: external links (25)

ArticleImportanceClassCount OldestIssues
Antagonism (chemistry) Low Stub1
Coordination polymerization Low Start1
Covestro Low Stub1
Enamine Mid Start4 Citation lacking title, Web citation with no URL, Citation with accessdate and no URL
Gas bubbler Low Start1
Glow stick Low Start1
Halohydrin Low Start1
Heinrich Wieland Prize Low List1
Herman Schlundt Low Stub1
Hungarian Chemical Society Low Stub1
Hypothetical types of biochemistry Low Start5 1998Potentially dated statements (1998), Unsourced statements (January 2012, February 2014), References needed (December 2017)
International Year of Crystallography Low Stub3 January 2014Notability unclear (January 2014), References needed (January 2014)
Ion chromatography Low Stub4 May 2016Unsourced statements (May 2016, October 2017), Reliable references lacking (May 2016)
Kraft process Mid C1
Liquid metal Low Start2 Citation with format and no URL
List of methylphenidate analogues Low List1
Markush structure Unknown Unassessed2 February 2018Dead external links (February 2018)
Nanocellulose High B9 May 2013Unsourced statements (October 2014, March 2017), Clarification needed (May 2013, March 2017), Page number citations needed (March 2017), Weasel-worded phrases (March 2017), Reliable references lacking (March 2017), Dead external links (February 2018)
Polymer High B4 May 2009Unsourced statements (May 2009, October 2017), Dead external links (March 2018)
Polymer electrolyte membrane electrolysis Low C1
Solvothermal synthesis Mid Start1
Surface-assisted laser desorption/ionization Low C1
Trimethylsilyl Low Start1
Xeno nucleic acid Low Start2 June 2016Unsourced statements (June 2016)
Yulia Sister Low B1

CS1 errors: invisible characters (3)

ArticleImportanceClassCount OldestIssues
Buckypaper Low B2 CS1 errors: dates
Susumu Kitagawa Unknown Start1
Zincke–Suhl reaction Mid Stub1

CS1 errors: missing author or editor (7)

ArticleImportanceClassCount OldestIssues
John Rex Whinfield Low Start1
Kurt Wüthrich Mid Start2 August 2015Unsourced statements (August 2015)
McFadyen–Stevens reaction Mid Start1
Neil Bartlett (chemist) Mid Start1
Periodic graph (crystallography) Low C3 October 2010Unsourced statements (October 2010), Citation lacking title
Surface hopping Low B1
Synthetic rubber Mid Start3 May 2016Citation lacking title, References needed (May 2016)

Citation has redundant parameters (4)

ArticleImportanceClassCount OldestIssues
Epoxide Mid Start1
Nanotechnology High B1
Osmolyte Low Stub1
Water model Low B3 November 2010Unsourced statements (November 2010, August 2017)

Citation lacking title (99)

ArticleImportanceClassCount OldestIssues
Alcohol Top B3 Citation with bare URL, Citation with accessdate and no URL
Alexey Favorsky Mid Stub1
Alum High B3 May 2009Unsourced statements (May 2009), Citation with bare URL
Atomistix ToolKit Low Start1
Austin Bide Low Stub3 August 2015Citation with bare URL, In-text citations lacking (August 2015)
Auxochrome Low Stub2 June 2015References needed (June 2015)
Behavior of nuclear fuel during a reactor accident Low C5 May 2013Expansion needed (May 2013), Citation with bare URL, Dead external links (May 2016, October 2016)
Birch reduction High B2 January 2017Unsourced statements (January 2017)
Blaise ketone synthesis Mid Stub1
Cage effect Low Stub1
Centrifugal evaporator Low Start4 September 2007References needed (September 2007), Unsourced statements (November 2015), Citation with bare URL
ChemSpider Low Start2 November 2017Unsourced statements (November 2017)
Chemical nomenclature Top C1
Chicken wire (chemistry) Low Start5 November 2007Unsourced statements (November 2007), Citation with bare URL, Dead external links (May 2016, November 2016)
Combes quinoline synthesis Low Start1
Conjugated microporous polymer Low B1
Corexit Low Start3 August 2014Citation with bare URL, Reliable references lacking (August 2014)
Demjanov rearrangement Mid Start1
Desulfonylation reactions Mid B1
Diphosphenes Low Start1
Electronegativity High B1
Enamine Mid Start4 Web citation with no URL, Citation with accessdate and no URL, CS1 errors: external links
Entropic explosion Low Stub3 Detailed references needed, Citation with bare URL
Flocculation Mid Start1
Fluorocarbon Mid Start3 May 2017Unsourced statements (May 2017), Dead external links (October 2017)
Friedel–Crafts reaction Mid B4 December 2011Unsourced statements (December 2011, June 2017), Dead external links (December 2017)
Fétizon oxidation Low Start1
Gerhard Krüss Low Start1
Harry L. Fisher Low Start1
Hervé This Low Start3 May 2013Unsourced statements (May 2013), Citation with bare URL
Hofmann–Löffler reaction Mid Start1
Hydrogel encapsulation of quantum dots Low C1
Hypervalent molecule Mid C1
Imidoyl chloride Low C1
Jerome J. Workman Jr. Low Start4 October 2013Dead external links (October 2013), Citation with bare URL, Promotional tone (January 2015)
Keller's reagent Low Stub2 Citation with format and no URL
Kinetic resolution Mid C1
Kostanecki acylation Low Stub1
Kulinkovich reaction Mid C1
Langmuir adsorption model Mid C1
Liebermann reagent Low Start2 Citation with bare URL
Liquid–liquid extraction Mid C5 March 2014Unsourced statements (May 2014), References needed (March 2014, May 2014), Citation with bare URL
London dispersion force Mid Start1
Malleable iron Low Start1
Marker degradation Mid Start1
Mesoporous organosilica Low C2 August 2016Reliable references lacking (August 2016)
Metal carbonyl Mid C1
Metal–organic framework Mid B4 Citation with bare URL, URL error, CS1 errors: dates
Michaelis–Arbuzov reaction Mid Start1
Molybdate Mid C2 Citation with bare URL
Morris S. Kharasch Unknown Unassessed2 May 2017Clarification needed (May 2017)
N-Sulfinyl imine Low C1
Nazarov cyclization reaction Mid GA1
Nitrite Mid Start1
Nucleic acid analogue Low C3 February 2017Expert attention needed (February 2017)
Optical brightener Mid Start3 April 2017Citation with bare URL, Unsourced statements (April 2017)
Organoaluminium chemistry Mid Start1
Oxaziridine Low GA1
Oxidation of primary alcohols to carboxylic acids Mid Start1
Oxyanion Mid C1
Parylene Low Start1
Periodic graph (crystallography) Low C3 October 2010Unsourced statements (October 2010), CS1 errors: missing author or editor
Peter Atkins Low Start2 Citation with bare URL
Phase-change material Low Start3 September 2012Introduction cleanup (September 2012), Citation with bare URL
Photofragment-ion imaging Mid Start2 April 2017Expansion needed (April 2017)
Polonide Low Start1
Propellane Low C1
Proteinoid Low Start4 December 2009References needed (December 2009), Unsourced statements (March 2014, September 2017)
Pseudoenzyme Low Start2 Citation with bare URL
Purified water Mid C4 February 2016Unsourced statements (February 2016), Citation with bare URL, Citation with format and no URL
Ramberg–Bäcklund reaction Mid Start2 July 2017Unsourced statements (July 2017)
Reductions with samarium(II) iodide Low B1
Reformatsky reaction Mid Start1
Retro-Diels–Alder reaction Low C1
Ring-opening polymerization Mid C1
Robinson annulation Mid C1
Ryoo Ryong Low Start4 December 2011BLP articles lacking sources (December 2011), Citation with bare URL, Dead external links (April 2018)
Sharpless epoxidation Mid Start1
Silsesquioxane Low C1
Silver chloride electrode Low B5 November 2007Unsourced statements (February 2009, November 2007), Citation with bare URL, Dead external links (May 2018)
Simmons–Smith reaction Mid C1
Spanish Royal Society of Chemistry Low Start2 January 2014Unsourced statements (January 2014)
Specific ion interaction theory Low C1
Standard conditions for temperature and pressure High B5 May 2012Unsourced statements (May 2012), Citation with bare URL, Dead external links (February 2017, January 2018)
Steven M. Weinreb Low Stub1
Sydnone Low Stub2 August 2013In-text citations lacking (August 2013)
Synthetic rubber Mid Start3 May 2016CS1 errors: missing author or editor, References needed (May 2016)
Template:OrgSynth NA Template1
Trifluoromethylation Low C1
Upsalite Low Stub2 Citation with bare URL
Wagner–Meerwein rearrangement Mid Stub1
Water splitting Low C6 2005Potentially dated statements (2005), Unsourced statements (February 2007, November 2017), Citation with bare URL, Dead external links (December 2017)
Water vapor Mid B4 June 2017Citation with bare URL, CS1 errors: dates, Weasel-worded phrases (June 2017)
Wet nanotechnology Low Start4 May 2012Style editing needed (May 2012), Original research (May 2012), Citation with bare URL
White–Chen catalyst Mid B1
Wilfrid Hickinbottom Low Stub1
Wolff rearrangement Low Start1
Xuong Nguyen-Huu Low Start3 Citation with bare URL, URL error
ZACA reaction Low Stub3 March 2017Context needed (March 2017), Introduction cleanup (March 2017)

Citation with accessdate and no URL (27)

ArticleImportanceClassCount OldestIssues
Alcohol Top B3 Citation with bare URL, Citation lacking title
Ammonium sulfate precipitation Mid Stub2 Web citation with no URL
Arnold Orville Beckman Low B1
Asia Petrochemical Industry Conference Low Stub1
Burette Mid Start2 Web citation with no URL
Craven Laboratories Low Stub1
Dyall Hamiltonian Low Stub2 December 2009Sources lacking (December 2009)
Edward Weston (chemist) Mid C2 October 2011In-text citations lacking (October 2011)
Edwin McMillan High GA1
Enamine Mid Start4 Citation lacking title, Web citation with no URL, CS1 errors: external links
Fulmer Research Institute Mid B1
Gwendolyn Wilson Fowler Low Start1
James Gayley Mid C1
Jan Baptist van Helmont Low B1
Joan Berkowitz Low Start1
John Browning (scientific instrument maker) Mid Start2 Web citation with no URL
Liquid-crystal laser Low Start2 Web citation with no URL
Melvyn Usselman Low Start2 Web citation with no URL
Michael Faraday Top B1
Percy Lavon Julian Low GA1
Periodic table Top FA3 2016Potentially dated statements (2016), Unsourced statements (May 2018)
Photonics and Nanostructures: Fundamentals and Applications Low Start2 Web citation with no URL
Reducing sugar Mid Start1
Steroid Mid C9 May 2014Expert attention needed (March 2017), Page number citations needed (May 2014), Reliable references lacking (July 2014, March 2017), Unsourced statements (March 2017), Factual verification needed (March 2017), Expansion needed (March 2017)
Superoxide Mid Start1
William Webster (chemical engineer) Low Start1
Zinc–air battery Mid C3 June 2009Unsourced statements (June 2009), CS1 errors: dates

Citation with bare URL (27)

ArticleImportanceClassCount OldestIssues
Alcohol Top B3 Citation lacking title, Citation with accessdate and no URL
Alum High B3 May 2009Unsourced statements (May 2009), Citation lacking title
Austin Bide Low Stub3 August 2015Citation lacking title, In-text citations lacking (August 2015)
Behavior of nuclear fuel during a reactor accident Low C5 May 2013Expansion needed (May 2013), Citation lacking title, Dead external links (May 2016, October 2016)
Centrifugal evaporator Low Start4 September 2007References needed (September 2007), Unsourced statements (November 2015), Citation lacking title
Chicken wire (chemistry) Low Start5 November 2007Unsourced statements (November 2007), Citation lacking title, Dead external links (May 2016, November 2016)
Corexit Low Start3 August 2014Citation lacking title, Reliable references lacking (August 2014)
Entropic explosion Low Stub3 Detailed references needed, Citation lacking title
Hervé This Low Start3 May 2013Unsourced statements (May 2013), Citation lacking title
Jerome J. Workman Jr. Low Start4 October 2013Dead external links (October 2013), Citation lacking title, Promotional tone (January 2015)
Liebermann reagent Low Start2 Citation lacking title
Liquid–liquid extraction Mid C5 March 2014Unsourced statements (May 2014), References needed (March 2014, May 2014), Citation lacking title
Metal–organic framework Mid B4 Citation lacking title, URL error, CS1 errors: dates
Molybdate Mid C2 Citation lacking title
Optical brightener Mid Start3 April 2017Citation lacking title, Unsourced statements (April 2017)
Peter Atkins Low Start2 Citation lacking title
Phase-change material Low Start3 September 2012Introduction cleanup (September 2012), Citation lacking title
Pseudoenzyme Low Start2 Citation lacking title
Purified water Mid C4 February 2016Unsourced statements (February 2016), Citation lacking title, Citation with format and no URL
Ryoo Ryong Low Start4 December 2011BLP articles lacking sources (December 2011), Citation lacking title, Dead external links (April 2018)
Silver chloride electrode Low B5 November 2007Unsourced statements (February 2009, November 2007), Citation lacking title, Dead external links (May 2018)
Standard conditions for temperature and pressure High B5 May 2012Unsourced statements (May 2012), Citation lacking title, Dead external links (February 2017, January 2018)
Upsalite Low Stub2 Citation lacking title
Water splitting Low C6 2005Potentially dated statements (2005), Unsourced statements (February 2007, November 2017), Citation lacking title, Dead external links (December 2017)
Water vapor Mid B4 June 2017Citation lacking title, CS1 errors: dates, Weasel-worded phrases (June 2017)
Wet nanotechnology Low Start4 May 2012Style editing needed (May 2012), Original research (May 2012), Citation lacking title
Xuong Nguyen-Huu Low Start3 Citation lacking title, URL error

Citation with format and no URL (22)

ArticleImportanceClassCount OldestIssues
Chemical equilibrium High C3 March 2009References needed (March 2009), Unsourced statements (July 2013)
Crystal structure of boron-rich metal borides Low B2 August 2017Dead external links (August 2017)
Dichlorodifluoroethylene Low Stub1
Fast ion conductor Low Start1
Flippin–Lodge angle Low C4 November 2014Page number citations needed (November 2014, March 2016), Unsourced statements (December 2015)
Fluorescence intermittency in colloidal nanocrystals Low Start1
Homogeneous and heterogeneous mixtures Mid Stub2 May 2018Clarification needed (May 2018)
John Dalton Top B2 December 2011Unsourced statements (December 2011)
Keller's reagent Low Stub2 Citation lacking title
Liquid metal Low Start2 CS1 errors: external links
Mesoporous silica Mid C2 March 2015Unsourced statements (March 2015)
Nanoparticle High C3 April 2015Unsourced statements (April 2015), Merge needed (September 2017)
Nitrile Mid C3 May 2009Dead external links (May 2009), Unsourced statements (November 2017)
Polyacetylene Mid B1
Purified water Mid C4 February 2016Unsourced statements (February 2016), Citation with bare URL, Citation lacking title
Sandwich compound High Start2 December 2016Factual verification needed (December 2016)
Spectroscopy Top B4 April 2016References needed (April 2016), Cleanup needed (April 2016), Prose needed (April 2016)
Spiro compound Mid C11 February 2016Unsourced statements (February 2016), References needed (February 2016), Reliable references lacking (February 2016), Expansion needed (February 2016), Self-contradictory articles (February 2016), Clarification needed (February 2016), Factual verification needed (February 2016, March 2016), Cleanup needed (October 2017, October 2017)
Tosyl Mid Start1
Trans fat Mid B12 September 2010Unsourced statements (May 2014, September 2015, April 2013, June 2015, April 2017), Update needed (September 2010), Obsolete information (March 2012), Vague or ambiguous geographic scope (September 2012), Dead external links (September 2017, January 2018), Reliable references lacking (November 2017)
Voltaic pile Low Start2 December 2010In-text citations lacking (December 2010)
Warren R. Roper Low Stub1

Detailed references needed (30)

ArticleImportanceClassCount OldestIssues
Angela K. Wilson Low Stub2 March 2016Unsourced statements (March 2016)
Arthur Nowick Low C1
Ayhan Ulubelen Low Start7 May 2012Unsourced statements (July 2013), BLP articles lacking sources (May 2012), Clarification needed (May 2012, July 2013), Vague or ambiguous time (July 2013), Dead external links (October 2016)
Chemical ecology Low Stub8 March 2017Expert attention needed (March 2017), Unsourced statements (March 2017), Weasel-worded phrases (March 2017), Self-contradictory articles (March 2017), Clarification needed (March 2017), Reliable references lacking (March 2017)
Chirality (chemistry) Top C1
Cyanide High B5 June 2008Unsourced statements (June 2008, July 2012, July 2015), Page number citations needed (July 2015)
Distribution law Low Stub2 August 2017References needed (August 2017)
Emulsion Mid C2 February 2018Unsourced statements (February 2018)
Entropic explosion Low Stub3 Citation with bare URL, Citation lacking title
Estuarine acidification Low Start5 October 2013Expert attention needed (October 2013), References needed (September 2014), Too technical (October 2013)
Firefighting foam Mid Start3 February 2015Potentially dated statements (2017), Promotional tone (February 2015)
Hand sanitizer Mid Start3 January 2012Unsourced statements (October 2013), Dead external links (January 2012)
Henri Moissan High C4 June 2014In-text citations lacking (June 2014), Unsourced statements (July 2017, August 2017)
Hydrophile Mid Start2 December 2014Page number citations needed (December 2014)
Lithium-ion battery Low C16 June 2010Potentially dated statements (2017, January 2014, 2016), Disputed statements (June 2010), Unsourced statements (June 2014, September 2016, October 2017, February 2018), Dead external links (November 2015), Reliable references lacking (August 2014, November 2016), Failed verification (November 2013, February 2016, December 2016, February 2018)
Magnesium alloy Low C3 August 2009References needed (August 2009), Unsourced statements (January 2015)
Non-stoichiometric compound High C3 July 2015Unsourced statements (July 2015), Expansion needed (July 2015)
Nucleophilic acyl substitution Mid Start1
Organocadmium compound High Start1
Petroleum Mid B10 July 2010Unsourced statements (January 2013, November 2010, January 2015, March 2018), Failed verification (July 2010, March 2018), Update needed (April 2016, October 2017), References needed (October 2016)
Phytoecdysteroid Low Stub1
Polycyclic aromatic hydrocarbon High B4 January 2014Unsourced statements (June 2014, July 2017), Clarification needed (January 2014)
Potassium binder Low Start1
Sulfate High C1
Takeru Higuchi Unknown Unassessed1
The Combustion Institute Mid Start1
Thiosulfate Mid Start2 February 2015Page number citations needed (February 2015)
Water chlorination Mid Start5 January 2014Page number citations needed (January 2014), Unsourced statements (March 2015, June 2016, March 2018)
Windshield washer fluid Low Start7 June 2010Unsourced statements (August 2010, November 2010), Clarification needed (June 2010), References needed (January 2016), Weasel-worded phrases (January 2016), In-text citations lacking (January 2017)
Wrought iron Mid C5 March 2011Unsourced statements (March 2011, February 2013, September 2017), Dead external links (December 2017)

Factual verification needed (38)

ArticleImportanceClassCount OldestIssues
Allotropes of sulfur Low B3 July 2015References needed (July 2015), Unsourced statements (July 2015), ... (July 2015)
Allylic strain High B2 August 2013... (August 2013), DOIs inactive (2017)
Aromaticity High B6 January 2014Reliable references lacking (April 2015), ... (January 2014, October 2014, April 2015), Unsourced statements (June 2016), Expansion needed (April 2015)
Cyclic compound High Start13 April 2015Expert attention needed (April 2015), Reliable references lacking (April 2015), Expansion needed (June 2015, April 2015), References needed (April 2015, June 2015), Unsourced statements (April 2015, June 2015), Clarification needed (April 2015), Page number citations needed (April 2015, June 2015), ... (April 2015)
Dihedral angle Low Start2 May 2017... (May 2017), Dead external links (February 2018)
Dioxygen in biological reactions Mid B1 September 2011... (September 2011)
Döbereiner's triads Low Stub3 December 2013Cleanup needed (December 2013, December 2013), ... (March 2018)
Electrosynthesis Mid C1 October 2014... (October 2014)
Energy harvesting Low B3 February 2011... (February 2011), Accuracy disputes or self-published (February 2014), Unsourced statements (August 2016)
Ethoxylation Mid Stub4 March 2016Unsourced statements (March 2016), Reliable references lacking (March 2016), Page number citations needed (March 2016), ... (March 2016)
Ethylmercury Low Start5 February 2017Expansion needed (February 2017), Disputed statements (February 2017), Update needed (February 2017), ... (February 2017), Unsourced statements (February 2017)
Fabric softener High Start6 August 2011... (August 2011), Unsourced statements (November 2015, May 2015, February 2018, March 2018, April 2018)
Germar Rudolf Low Stub4 October 2015BLP articles lacking sources (October 2015), Reliable references lacking (October 2015), ... (October 2015), Introduction cleanup (October 2015)
Hammett equation Mid Start11 June 2015Unsourced statements (June 2015), Style editing needed (June 2015), Update needed (June 2015), References needed (June 2015), Reliable references lacking (June 2015), Cleanup needed (June 2015, June 2015), Clarification needed (June 2015), ... (June 2015), Page number citations needed (June 2015), References lacking (June 2015)
Hermann Kolbe High Start1 July 2014... (July 2014)
History of chemistry High B7 August 2007Unsourced statements (August 2007, June 2008, May 2010, August 2012), ... (June 2010), Web citation with no URL, CS1 errors: dates
Jabir ibn Hayyan Mid B5 May 2009Unsourced statements (May 2009, July 2014, March 2014), ... (June 2011), Dead external links (August 2017)
Lead glass Mid B1 September 2012... (September 2012)
Leo Paquette Low Start7 January 2016Reliable references lacking (January 2016), Unsourced statements (January 2016), Weasel-worded phrases (January 2016), BLP articles lacking sources (April 2016, January 2016), ... (January 2016), Vague or ambiguous time (January 2016)
List of unsolved problems in chemistry Low List8 November 2011References needed (December 2014), Expert attention needed (November 2011), Accuracy disputes or self-published (November 2011), Unsourced statements (December 2014), Reliable references lacking (December 2014), Weasel-worded phrases (December 2014), ... (December 2014)
Muhammad ibn Zakariya al-Razi Low C7 November 2010Unsourced statements (October 2012, November 2016), References needed (May 2012), ... (November 2010), Web citation with no URL, CS1 errors: dates, Dead external links (December 2017)
Noble gas compound Mid C9 January 2015Cleanup needed (January 2015, January 2015), References needed (January 2015), Expansion needed (January 2015), Reliable references lacking (January 2015), Unsourced statements (January 2015), Weasel-worded phrases (January 2015), Vague or ambiguous time (January 2015), ... (January 2015)
Partition coefficient High B4 March 2016Unsourced statements (March 2016), Reliable references lacking (March 2016), Page number citations needed (March 2016), ... (March 2016)
Peptide nucleic acid Low Start1 December 2017... (December 2017)
Peptide synthesis High C9 November 2016Obsolete information (November 2016), Unsourced statements (November 2016, January 2018, May 2018), Reliable references lacking (November 2016), Original research (November 2016), ... (November 2016), References needed (November 2016, June 2017)
Physical organic chemistry High Start7 June 2015Expansion needed (June 2015), Unsourced statements (June 2015), Reliable references lacking (June 2015), Clarification needed (June 2015), ... (June 2015), Page number citations needed (June 2015), References lacking (June 2015)
SNOX process Low Start2 October 2014... (October 2014), Page number citations needed (October 2014)
Sandwich compound High Start2 December 2016Citation with format and no URL, ... (December 2016)
Saponin Mid C3 March 2009... (March 2009), Unsourced statements (March 2009, November 2017)
Semisynthesis Mid Start3 March 2017Unsourced statements (March 2017), ... (March 2017), References needed (March 2017)
Singlet oxygen Mid C4 August 2015References needed (August 2015), Unsourced statements (August 2015), Reliable references lacking (August 2015), ... (August 2015)
Space-filling model Low Start3 June 2015References needed (June 2015), Reliable references lacking (June 2015), ... (June 2015)
Spiro compound Mid C11 February 2016Unsourced statements (February 2016), Citation with format and no URL, References needed (February 2016), Reliable references lacking (February 2016), Expansion needed (February 2016), Self-contradictory articles (February 2016), Clarification needed (February 2016), ... (February 2016, March 2016), Cleanup needed (October 2017, October 2017)
Steroid Mid C9 May 2014Expert attention needed (March 2017), Citation with accessdate and no URL, Page number citations needed (May 2014), Reliable references lacking (July 2014, March 2017), Unsourced statements (March 2017), ... (March 2017), Expansion needed (March 2017)
Tautomer High B4 July 2015References needed (July 2015), Unsourced statements (July 2015), Reliable references lacking (July 2015), ... (July 2015)
Transition metal alkyne complex Mid C1 May 2015... (May 2015)
Vitamin B12 total synthesis Mid B3 March 2017Unsourced statements (March 2017), ... (March 2017), Reliable references lacking (March 2017)
World Wide Molecular Matrix Low Start4 December 2010References needed (December 2010), Unsourced statements (December 2010), In-text citations lacking (December 2010), ... (December 2010)

Failed verification (18)

ArticleImportanceClassCount OldestIssues
Alkaline battery Mid C3 November 2016... (November 2016), Unsourced statements (November 2016, September 2017)
Amateur chemistry High Start1 September 2016... (September 2016)
Calorimeter Mid C3 November 2017... (November 2017), References needed (November 2017), Unsourced statements (April 2018)
Creosote Low B8 October 2016... (October 2016), Unsourced statements (January 2017, February 2017, December 2017, January 2018), Weasel-worded phrases (January 2017), Vague or ambiguous geographic scope (January 2017), Vague or ambiguous time (December 2017)
Exothermic process Mid Start3 March 2015Clarification needed (March 2015), Disputed statements (March 2015), ... (January 2018)
Fuel cell Mid B4 September 2010Dead external links (September 2010), Potentially dated statements (August 2011, December 2016), ... (February 2012)
Leaching (chemistry) Mid Start1 April 2016... (April 2016)
Lithium-ion battery Low C16 June 2010Detailed references needed, Potentially dated statements (2017, January 2014, 2016), Disputed statements (June 2010), Unsourced statements (June 2014, September 2016, October 2017, February 2018), Dead external links (November 2015), Reliable references lacking (August 2014, November 2016), ... (November 2013, February 2016, December 2016, February 2018)
Ocean acidification Low C4 February 2012Unsourced statements (January 2014), ... (February 2012, June 2017), Dead external links (February 2018)
Olke C. Uhlenbeck Low Stub2 April 2011Reliable references lacking (April 2011), ... (April 2011)
Organophosphate High C5 March 2017Unsourced statements (March 2017, March 2018), Weasel-worded phrases (March 2017), Clarification needed (March 2017), ... (March 2018)
PH Top C2 October 2014Clarification needed (October 2014), ... (December 2017)
Paint Low C4 June 2008References needed (June 2008), Unsourced statements (August 2011, December 2015), ... (December 2015)
Petroleum Mid B10 July 2010Detailed references needed, Unsourced statements (January 2013, November 2010, January 2015, March 2018), ... (July 2010, March 2018), Update needed (April 2016, October 2017), References needed (October 2016)
Radical clock Low Start1 February 2011... (February 2011)
Reactivity series Mid C1 September 2016... (September 2016)
Ripening Low Start6 February 2010References needed (February 2010), Expert attention needed (January 2013), Unsourced statements (July 2016, May 2017), ... (July 2017)
Tear gas Mid Start3 December 2013Unsourced statements (December 2013), Dead external links (October 2017), ... (October 2017)

In-text citations lacking (137)

ArticleImportanceClassCount OldestIssues
ACS style Low C2 March 2017... (March 2017), References needed (March 2017)
Acid Top C1 May 2009... (May 2009)
Acryloyl group High Stub2 June 2009Sources lacking (June 2009), ... (February 2018)
Albert Johan Petersson Low Stub2 July 2017Orphaned (October 2017), ... (July 2017)
Alexander Butlerov Chemistry Institute Low Start4 May 2017Coordinates needed, ... (May 2017), Reliable references lacking (May 2017), Categories needed (May 2017)
Alexander Klibanov (chemist) Unknown Unassessed1 February 2013... (February 2013)
Allethrins Low Start1 March 2014... (March 2014)
Amedeo Avogadro Mid C2 May 2008... (May 2008), Disputed statements (March 2016)
Antibonding molecular orbital High Start2 August 2012References needed (August 2012), ... (August 2012)
Antoine equation Low Start1 March 2014... (March 2014)
Arthur C. Cope Mid Stub1 February 2013... (February 2013)
Austin Bide Low Stub3 August 2015Citation with bare URL, Citation lacking title, ... (August 2015)
Benedict's reagent Mid Start2 May 2015References needed (May 2015), ... (May 2015)
Bioactive paper Low Start3 July 2009References needed (July 2009), ... (August 2009), Conflict of interest (July 2009)
Biophysical chemistry Mid Stub2 September 2012Unsourced statements (September 2012), ... (January 2017)
Bridged compounds Mid Stub7 February 2016Expert attention needed (February 2016), References needed (March 2016), ... (February 2016), Expansion needed (March 2016), Cleanup needed (March 2016), List cleanup (March 2016)
Calibration curve Low Start3 October 2008... (October 2008), Introduction cleanup (November 2017), Expansion needed (January 2018)
Centrifugation Mid Start2 November 2010Unsourced statements (December 2010), ... (November 2010)
Ceramic colorants Low Start3 May 2008Expert attention needed (May 2008), ... (November 2010)
Chan-Lam coupling Low Start1 May 2015... (May 2015)
Charles A. Joy Mid Start1 July 2014... (July 2014)
Charles Frederick Burgess Mid Stub1 July 2014... (July 2014)
Charles Frédéric Gerhardt Mid Start1 May 2013... (May 2013)
Chartered Chemist Low Stub2 March 2013... (March 2013), Limited geographic scope (April 2016)
Chemical structure High Stub5 July 2015Expert attention needed (July 2015), References needed (October 2015), Unsourced statements (July 2015), ... (October 2015)
Christopher M. Reddy Low Start2 September 2012Reliable references lacking (September 2012), ... (March 2013)
Chromatographic response function Low Stub2 September 2008... (September 2008), Unsourced statements (September 2009)
Chromatography in blood processing Low Start4 September 2008... (April 2009, September 2008), Original research (September 2008), Introduction cleanup (April 2013)
Coating Low Start2 April 2010... (April 2010), References needed (April 2014)
Cofiring Low C1 November 2010... (November 2010)
Comet (pyrotechnics) Low Stub2 November 2012References needed (November 2012), ... (November 2012)
Cryochemistry Mid Start5 November 2015Unsourced statements (November 2015), ... (November 2015), Clarification needed (November 2015), Vague or ambiguous time (November 2015), Dead external links (January 2018)
Crystallography High C2 November 2009... (November 2009), Unsourced statements (November 2012)
Curing (chemistry) Low Start1 July 2015... (July 2015)
Cyclopentadienyl complex Low B1 May 2014... (May 2014)
Demonstration plant Low Start2 April 2016... (April 2016), Wikilinks needed (April 2016)
Denis Evans Low Start2 August 2015BLP articles lacking sources (August 2015), ... (August 2015)
Depolarizer Low Start2 October 2008... (October 2008), Unsourced statements (February 2011)
Desorption Low Start2 November 2013References needed (November 2013), ... (November 2013)
Dishwasher salt Low Stub2 September 2012References needed (September 2012), ... (July 2016)
Disk-covering method Low Stub2 February 2008Orphaned (February 2009), ... (February 2008)
Dragon's egg Low Stub1 February 2014... (February 2014)
Drug Master File Low Start2 May 2009... (May 2009), Wikilinks needed (November 2012)
Edward Weston (chemist) Mid C2 October 2011... (October 2011), Citation with accessdate and no URL
Electron deficiency Low Stub1 April 2018... (April 2018)
Erling Johnson Low Stub1 February 2018... (February 2018)
Field ion microscope Low Start1 January 2013... (January 2013)
Flame ionization detector Low Stub2 October 2008Rewrite needed (October 2008), ... (July 2011)
Frans Maurits Jaeger Low Start1 February 2013... (February 2013)
François Diederich Low Stub1 March 2013... (March 2013)
Friedlieb Ferdinand Runge Low Start1 March 2011... (March 2011)
Fritz Pregl High Start3 January 2011... (January 2011), Unsourced statements (August 2017), Dead external links (November 2017)
Fritz ter Meer Low Stub2 August 2011Unsourced statements (August 2011), ... (June 2014)
Galvanism Mid Start1 October 2009... (October 2009)
Gamma spectroscopy Mid C1 December 2013... (December 2013)
Gasochromism Low Stub2 August 2010References needed (August 2010), ... (August 2010)
George C. Schatz Low Stub1 February 2013... (February 2013)
Georgius Agricola Mid C1 January 2013... (January 2013)
Globally Harmonized System of Classification and Labelling of Chemicals Mid Start7 May 2008Style editing needed (May 2008), ... (September 2013), Dead external links (September 2016), Vague or ambiguous time (February 2017), Unsourced statements (February 2017), Weasel-worded phrases (February 2017), References needed (February 2017)
Grain size Low Start1 July 2011... (July 2011)
Gustavus Detlef Hinrichs Mid C2 July 2012Unsourced statements (July 2012), ... (July 2012)
Henri Moissan High C4 June 2014Detailed references needed, ... (June 2014), Unsourced statements (July 2017, August 2017)
Henry Wurtz Mid Stub2 November 2010Orphaned (November 2010), ... (May 2013)
Henryk Bem Low Start1 August 2017... (August 2017)
Herchel Smith Low Start1 April 2015... (April 2015)
IUPAC nomenclature for organic transformations Mid Start1 March 2016... (March 2016)
Ice XII Mid Stub1 August 2012... (August 2012)
Ilya Prigogine High C5 October 2010Unsourced statements (March 2012, March 2015, April 2017), ... (October 2010), Weasel-worded phrases (December 2013)
Impurity Mid Start1 June 2013... (June 2013)
Internal standard Mid Start1 November 2013... (November 2013)
Iodine test Mid Start2 October 2012... (October 2012), Unsourced statements (June 2015)
Ion exchange Mid C1 July 2016... (July 2016)
Isotachophoresis Low Start2 November 2017... (November 2017), References needed (November 2017)
Jeremias Benjamin Richter Low Start4 November 2009... (November 2009, January 2014), CS1 errors: dates, Disputed statements (April 2014)
Jesús Jiménez Barbero Low Stub3 May 2016Reliable references lacking (May 2016), ... (May 2016), BLP articles lacking sources (May 2016)
Jing Li (chemist) Low Start3 November 2012BLP articles lacking sources (November 2012), Reliable references lacking (November 2012), ... (November 2012)
Joanna Fowler Mid Start3 November 2012Expansion needed (December 2012), BLP articles lacking sources (November 2012), ... (November 2012)
Johann Friedrich Cartheuser Low Stub2 July 2014... (July 2014), Orphaned (June 2016)
John Mayow Low B2 January 2014Unsourced statements (December 2014), ... (January 2014)
John Tedder, 2nd Baron Tedder Low Start1 February 2010... (February 2010)
Joseph J. Katz Mid Start3 September 2012Introduction cleanup (September 2012), Reference cleanup (September 2012), ... (November 2014)
Juan-Julio Bonet Sugrañes Unknown Unassessed2 January 2017References needed (January 2017), ... (January 2017)
Karl Barry Sharpless High Start1 April 2012... (April 2012)
Karl Slotta Low Start1 February 2013... (February 2013)
Liesegang rings Low Start3 November 2010Expert attention needed (November 2010), ... (November 2010)
List of Schedule 1 substances (CWC) Low List1 January 2013... (January 2013)
List of Schedule 3 substances (CWC) Low List1 January 2013... (January 2013)
MDL Chime Low Stub3 July 2014... (July 2014), Reliable references lacking (July 2014), Dead external links (May 2017)
Mary Elvira Weeks Low Stub1 November 2013... (November 2013)
Matrix isolation Mid Start1 December 2010... (December 2010)
Microemulsion Mid Start1 November 2010... (November 2010)
Mischmetal Low C2 2007Potentially dated statements (2007), ... (April 2012)
NAS Award for Chemistry in Service to Society Low List1 March 2013... (March 2013)
NAS Award in Chemical Sciences Low List1 March 2013... (March 2013)
Norman Allinger Low Stub1 February 2013... (February 2013)
Nuclear magnetic resonance spectroscopy High B2 2003Potentially dated statements (2003), ... (November 2016)
Organic Reactions Mid Start1 February 2013... (February 2013)
Otto Ambros Low Stub1 July 2010... (July 2010)
Overpotential Mid Start2 May 2013... (May 2013), Unsourced statements (July 2015)
Owen Wansbrough-Jones Low Stub1 February 2013... (February 2013)
Paul Karrer High C1 October 2009... (October 2009)
Pensky–Martens closed-cup test Low Stub3 December 2008References needed (December 2008), ... (October 2011), Unsourced statements (December 2017)
Peter Moore (chemist) Low Start1 February 2013... (February 2013)
Photocathode Low Start1 October 2008... (October 2008)
Physical vapor deposition Mid Stub4 February 2009Expert attention needed (February 2009), ... (April 2011), Unsourced statements (July 2016)
Powder Mid Start2 April 2010... (April 2010), Dead external links (March 2018)
Powder coating on glass Low Start2 February 2014Style editing needed (February 2014), ... (February 2014)
Quality of analytical results Low Stub1 October 2014... (October 2014)
Quantum chemistry Top C4 January 2011Cleanup needed (January 2011, January 2011), ... (December 2012), Unsourced statements (November 2017)
Ralph Pearson Low Start1 February 2013... (February 2013)
Raphael Meldola Mid Stub2 May 2013Unsourced statements (May 2013), ... (February 2014)
Reactive nitrogen Mid C2 August 2014... (August 2014), Dead external links (August 2014)
Robert Fulford Ruttan Low Stub1 July 2013... (July 2013)
Robert Parr Low Start1 February 2013... (February 2013)
S. Mageswaran Low Start5 March 2018... (March 2018), Style editing needed (March 2018), Close paraphrasing (March 2018), Cleanup needed (March 2018), Unsourced statements (March 2018)
Secondary plot (kinetics) Low Start1 October 2017... (October 2017)
Semi-rigid molecule Mid Start2 December 2010... (December 2010), Merge needed (May 2017)
Severinghaus electrode Low Stub2 March 2011... (March 2011), Orphaned (June 2016)
Show globe Low C1 February 2015... (February 2015)
Silvicide Low Stub2 June 2011... (June 2011), Orphaned (June 2016)
Standard addition Low Stub1 August 2014... (August 2014)
Stanford Moore High Stub1 March 2013... (March 2013)
Substitution of dangerous chemicals Mid Stub2 April 2017... (April 2017), Style editing needed (April 2017)
Suction filtration Low Stub1 August 2013... (August 2013)
Sydnone Low Stub2 August 2013Citation lacking title, ... (August 2013)
Thermonuclear weapon Mid C9 September 2009Expansion needed (September 2009), References needed (August 2013, December 2015), ... (August 2013), Reliable references lacking (October 2014, December 2016), Unsourced statements (January 2016, October 2017, November 2017)
Triplet state Low Start1 December 2010... (December 2010)
UV pinning Low Start2 February 2009Orphaned (February 2009), ... (November 2010)
Vacuum deposition Low Start1 April 2009... (April 2009)
Vapor-compression desalination Low Stub1 April 2017... (April 2017)
Viehland–Mason theory Low Stub1 March 2015... (March 2015)
Voltaic pile Low Start2 December 2010... (December 2010), Citation with format and no URL
Water gas Low Start2 May 2015References needed (May 2015), ... (January 2017)
Wayne L. Hubbell Low Start1 February 2013... (February 2013)
William H. Schlesinger Low Start1 February 2013... (February 2013)
Windshield washer fluid Low Start7 June 2010Detailed references needed, Unsourced statements (August 2010, November 2010), Clarification needed (June 2010), References needed (January 2016), Weasel-worded phrases (January 2016), ... (January 2017)
World Wide Molecular Matrix Low Start4 December 2010References needed (December 2010), Unsourced statements (December 2010), ... (December 2010), Factual verification needed (December 2010)

Page number citations needed (50)

ArticleImportanceClassCount OldestIssues
Amino acid Mid GA3 September 2010... (September 2010), Dead external links (July 2017), Clarification needed (August 2017)
Analytical chemistry Top C4 March 2013Unsourced statements (March 2013, April 2016), ... (January 2014), Expansion needed (April 2016)
Atom Top FA1 April 2011... (April 2011)
Biocatalysis High Start2 January 2011Vague or ambiguous time (January 2011), ... (February 2013)
Biomonitoring Mid C6 April 2012... (April 2012), Unsourced statements (April 2016), Expansion needed (April 2016), Limited geographic scope (April 2016), Reliable references lacking (April 2016), Vague or ambiguous geographic scope (April 2016)
Bond-dissociation energy High Start1 May 2016... (May 2016)
Bürgi–Dunitz angle Mid Start1 November 2014... (November 2014)
Carbon–oxygen bond Mid Start1 June 2014... (June 2014)
Cyanide High B5 June 2008Detailed references needed, Unsourced statements (June 2008, July 2012, July 2015), ... (July 2015)
Cyclic compound High Start13 April 2015Expert attention needed (April 2015), Reliable references lacking (April 2015), Expansion needed (June 2015, April 2015), References needed (April 2015, June 2015), Unsourced statements (April 2015, June 2015), Clarification needed (April 2015), ... (April 2015, June 2015), Factual verification needed (April 2015)
Cyclodextrin Mid Start1 April 2013... (April 2013)
Edgar Charles Bate-Smith Low Stub2 December 2012Reliable references lacking (December 2012), ... (December 2012)
Equilibrium constant High C1 November 2011... (November 2011)
Ethoxylation Mid Stub4 March 2016Unsourced statements (March 2016), Reliable references lacking (March 2016), ... (March 2016), Factual verification needed (March 2016)
Flippin–Lodge angle Low C4 November 2014Citation with format and no URL, ... (November 2014, March 2016), Unsourced statements (December 2015)
Fluoride High C6 April 2015Unsourced statements (April 2015, July 2016, September 2017), CS1 errors: chapter ignored, ... (July 2016), Dead external links (October 2017)
Fritz Haber High C4 October 2014Clarification needed (October 2014), ... (May 2016), Unsourced statements (August 2017, September 2017)
Galvanic corrosion Mid C2 January 2011... (January 2011), CS1 errors: dates
Hammett equation Mid Start11 June 2015Unsourced statements (June 2015), Style editing needed (June 2015), Update needed (June 2015), References needed (June 2015), Reliable references lacking (June 2015), Cleanup needed (June 2015, June 2015), Clarification needed (June 2015), Factual verification needed (June 2015), ... (June 2015), References lacking (June 2015)
Herbicide High C11 1992Potentially dated statements (1992), References needed (August 2011), Unsourced statements (August 2011, June 2014, January 2015, May 2017), Weasel-worded phrases (July 2010, December 2012), ... (January 2013), Expansion needed (December 2015), Viewpoints needed (October 2015)
Hydrogen halide Mid Start2 April 2015Unsourced statements (April 2015), ... (April 2015)
Hydrophile Mid Start2 December 2014Detailed references needed, ... (December 2014)
Hydroxylation Mid Start2 March 2017Unsourced statements (March 2017), ... (March 2017)
Industrial Bio-Test Laboratories Low C2 February 2013Weasel-worded phrases (February 2013), ... (February 2013)
John Arnold Cranston Mid Start1 December 2015... (December 2015)
Lethal dose Mid Start4 January 2014Unsourced statements (April 2016, June 2017, April 2018), ... (January 2014)
Lye Low Start3 November 2014References needed (November 2014), ... (November 2014), Unsourced statements (September 2016)
Macrocyclic ligand Mid C1 April 2015... (April 2015)
Mesoionic Low Stub1 September 2013... (September 2013)
Molecular recognition Mid Start1 September 2010... (September 2010)
Nanocellulose High B9 May 2013Unsourced statements (October 2014, March 2017), Clarification needed (May 2013, March 2017), CS1 errors: external links, ... (March 2017), Weasel-worded phrases (March 2017), Reliable references lacking (March 2017), Dead external links (February 2018)
Natural product High B2 July 2014Unsourced statements (July 2014), ... (July 2014)
Organic synthesis High B3 March 2016References needed (March 2016), Vague or ambiguous time (March 2016), ... (March 2016)
Partition coefficient High B4 March 2016Unsourced statements (March 2016), Reliable references lacking (March 2016), ... (March 2016), Factual verification needed (March 2016)
Physical organic chemistry High Start7 June 2015Expansion needed (June 2015), Unsourced statements (June 2015), Reliable references lacking (June 2015), Clarification needed (June 2015), Factual verification needed (June 2015), ... (June 2015), References lacking (June 2015)
Polychlorinated biphenyl High B12 May 2007Unsourced statements (May 2007, October 2015, July 2010, September 2015, May 2013, February 2011, May 2015, September 2016, April 2018), ... (May 2013, October 2015), Reliable references lacking (January 2018)
Polyolefin Low Start3 January 2011References needed (January 2011), ... (July 2013), Unsourced statements (November 2016)
Procyanidin Mid C2 August 2010Reliable references lacking (October 2010), ... (August 2010)
Reaction intermediate High Start1 March 2016... (March 2016)
Relativistic quantum chemistry Mid Start3 July 2013Unsourced statements (July 2013, March 2018), ... (July 2013)
Ruggero Santilli Low Start2 February 2017Unsourced statements (February 2017), ... (February 2017)
SNOX process Low Start2 October 2014Factual verification needed (October 2014), ... (October 2014)
Steam High Start3 September 2013Unsourced statements (September 2013), References needed (September 2013), ... (September 2013)
Stereocenter High Start5 February 2016Expert attention needed (February 2016), References needed (February 2016), Clarification needed (February 2016), ... (February 2016)
Steroid Mid C9 May 2014Expert attention needed (March 2017), Citation with accessdate and no URL, ... (May 2014), Reliable references lacking (July 2014, March 2017), Unsourced statements (March 2017), Factual verification needed (March 2017), Expansion needed (March 2017)
Sulphobes Low Stub1 June 2017... (June 2017)
Thiosulfate Mid Start2 February 2015Detailed references needed, ... (February 2015)
Third law of thermodynamics Top C3 January 2013Unsourced statements (January 2013), ... (January 2013), Clarification needed (April 2015)
Water chlorination Mid Start5 January 2014Detailed references needed, ... (January 2014), Unsourced statements (March 2015, June 2016, March 2018)
Zirconate Low Stub1 March 2015... (March 2015)

Reference cleanup (11)

ArticleImportanceClassCount OldestIssues
Accelerant Mid Start1 October 2016... (October 2016)
Alfred Senier Low Stub1 February 2012... (February 2012)
Asymmetric addition of alkenylmetals to aldehydes Low Start1 September 2017... (September 2017)
Cone calorimeter Low Start6 April 2013Cleanup needed (April 2013, April 2013), Peacock terms (May 2014), Promotional tone (May 2014), Wikilinks needed (May 2014), ... (May 2014)
Enthalpy of vaporization High C2 March 2016... (March 2016), Disputed statements (April 2017)
Isotopic ratio outlier analysis Low Start2 January 2014Orphaned (August 2014), ... (January 2014)
John Bockris Low Start3 May 2015References needed (September 2015), ... (May 2015), Peacock terms (September 2015)
Joseph J. Katz Mid Start3 September 2012Introduction cleanup (September 2012), ... (September 2012), In-text citations lacking (November 2014)
Modified Wittig-Claisen tandem reaction Low Start1 September 2017... (September 2017)
Product selectivity High Start2 September 2017References needed (September 2017), ... (September 2017)
Quantemol-DB Low Start7 April 2017Conflict of interest (April 2017), Peacock terms (April 2017), ... (April 2017), Unsourced statements (July 2017), Merge needed (July 2017), Weasel-worded phrases (July 2017), Clarification needed (July 2017)

Reference errors (6)

ArticleImportanceClassCount OldestIssues
7039 aluminium alloy Low Stub1
Amino radical Low Stub1
Chemical equation High C2 September 2011References needed (September 2011)
Klaus-Dieter Hungenberg Low Start5 September 2013Reliable references lacking (November 2013), Orphaned (September 2013), Peacock terms (November 2013), Dead external links (May 2017)
Reaction progress kinetic analysis Low C1
Toxic Substances Control Act of 1976 Mid Start6 July 2013Unsourced statements (July 2013, April 2016), Potentially dated statements (2015), Reliable references lacking (April 2016), Dead external links (December 2017)

References lacking (2)

ArticleImportanceClassCount OldestIssues
Hammett equation Mid Start11 June 2015Unsourced statements (June 2015), Style editing needed (June 2015), Update needed (June 2015), References needed (June 2015), Reliable references lacking (June 2015), Cleanup needed (June 2015, June 2015), Clarification needed (June 2015), Factual verification needed (June 2015), Page number citations needed (June 2015), ... (June 2015)
Physical organic chemistry High Start7 June 2015Expansion needed (June 2015), Unsourced statements (June 2015), Reliable references lacking (June 2015), Clarification needed (June 2015), Factual verification needed (June 2015), Page number citations needed (June 2015), ... (June 2015)

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440C Low Stub1 August 2013... (August 2013)
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ACS style Low C2 March 2017In-text citations lacking (March 2017), ... (March 2017)
AMSilk Low Start1 May 2017... (May 2017)
Abraham Savitzky Low Stub1 September 2012... (September 2012)
Absorption band Mid Start1 October 2013... (October 2013)
Abundance (chemistry) Mid Stub1 November 2009... (November 2009)
Accepted and experimental value Low Stub1 April 2016... (April 2016)
Acetyl group High Start2 January 2016... (January 2016), Unsourced statements (January 2016)
Acicular ferrite Low Stub1 October 2009... (October 2009)
Acid value Low C1 July 2016... (July 2016)
Acrylic paint Low Start2 November 2009... (November 2009), Original research (June 2010)
Activation energy Mid Start1 January 2017... (January 2017)
Adhesive Mid C1 August 2013... (August 2013)
Aerogel High B2 May 2013Potentially dated statements (2013), ... (May 2013)
AlGa Low Stub1 January 2018... (January 2018)
Alcohol oxidation High C1 September 2014... (September 2014)
Aldaric acid Mid Start1 December 2012... (December 2012)
Aleksei Chichibabin Low Start1 February 2015... (February 2015)
Alkali High Start2 June 2008... (June 2008), Dead external links (July 2016)
Alkali metal oxide Mid Stub1 August 2012... (August 2012)
Alkali salt Mid Start1 April 2011... (April 2011)
Allotropes of sulfur Low B3 July 2015... (July 2015), Unsourced statements (July 2015), Factual verification needed (July 2015)
Alpha hydroxy acid Mid Start2 June 2009... (June 2009), Unsourced statements (August 2017)
Aluminium smelting Mid Start1 November 2013... (November 2013)
Amalgam (chemistry) Mid Start2 September 2017Expansion needed (September 2017), ... (September 2017)
American Chemistry Council Low Start3 December 2008... (December 2008), Unsourced statements (October 2011), Weasel-worded phrases (October 2011)
Amorphous metal Low Start4 March 2011... (April 2012), Unsourced statements (March 2011, May 2012), Clarification needed (April 2012)
Amphibole Mid Start1 November 2010... (November 2010)
Analyte Low Stub1 December 2017... (December 2017)
Anhydrous High Stub1 June 2010... (June 2010)
Anode Mid Start1 September 2012... (September 2012)
Anti-corrosion Mid Start3 October 2009... (October 2009), Expert attention needed (February 2011)
Antibonding molecular orbital High Start2 August 2012... (August 2012), In-text citations lacking (August 2012)
Antichlor Low Stub1 December 2009... (December 2009)
Anticrystal Low Stub2 July 2014... (July 2014), Notability unclear (August 2017)
Antoine Lavoisier High B6 February 2013Unsourced statements (May 2013, February 2013, July 2016), Dead external links (December 2017, March 2018), ... (May 2018)
Aqueous solution High Start1 April 2011... (April 2011)
Arrow pushing Mid Start1 April 2009... (April 2009)
Arthur C. Cope Award Mid List2 February 2018... (February 2018), Notability unclear (February 2018)
Assay Mid Start3 September 2013Unsourced statements (September 2013, August 2016), ... (August 2016)
Atomic ratio Mid Stub1 August 2015... (August 2015)
August Kekulé High Start2 June 2015Unsourced statements (June 2015), ... (June 2015)
Australasian Corrosion Association Low Stub2 April 2017Notability unclear (April 2017), ... (July 2017)
Autocatalysis High Start1 September 2010... (September 2010)
Auxochrome Low Stub2 June 2015Citation lacking title, ... (June 2015)
Azane Low Start2 April 2013... (September 2014), Unsourced statements (April 2013)
Backbone chain High Stub1 February 2014... (February 2014)
Balco alloy Low Stub1 December 2009... (December 2009)
Ballotechnics Low Start2 February 2015... (February 2015), Original research (February 2015)
Base (chemistry) Top C1 September 2010... (September 2010)
Battery (electricity) Mid C6 December 2010Potentially dated statements (2012, 2017), Unsourced statements (December 2010), ... (April 2017), Dead external links (June 2017, July 2017)
Bauxite Mid C2 April 2014... (April 2014), Dead external links (January 2018)
Bayberry wax Low Stub1 July 2016... (July 2016)
Beckmann rearrangement Mid B1 December 2017... (December 2017)
Benedict's reagent Mid Start2 May 2015... (May 2015), In-text citations lacking (May 2015)
Berry mechanism Low Stub1 May 2014... (May 2014)
Beta-Hydride elimination Mid C1 August 2012... (August 2012)
Bioactive paper Low Start3 July 2009... (July 2009), In-text citations lacking (August 2009), Conflict of interest (July 2009)
Biobor Low Start2 June 2010... (June 2010), Promotional tone (August 2011)
Bond cleavage Low Stub1 February 2018... (February 2018)
Branching (polymer chemistry) Low Start1 August 2013... (August 2013)
Brass Mid C3 October 2010Unsourced statements (October 2010, January 2015), ... (January 2017)
Bridged compounds Mid Stub7 February 2016Expert attention needed (February 2016), ... (March 2016), In-text citations lacking (February 2016), Expansion needed (March 2016), Cleanup needed (March 2016), List cleanup (March 2016)
Britannia silver Low Stub1 July 2017... (July 2017)
Bunsen–Kirchhoff Award Low Stub1 June 2013... (June 2013)
Burn rate (chemistry) Low Start1 November 2012... (November 2012)
CAS Registry Number Mid Start1 June 2017... (June 2017)
Cahn–Ingold–Prelog priority rules Mid Start3 February 2016Unsourced statements (February 2016), ... (February 2016), Weasel-worded phrases (February 2016)
Calibration gas Low Stub2 June 2013... (June 2013), Notability unclear (June 2013)
Calorimeter Mid C3 November 2017Failed verification (November 2017), ... (November 2017), Unsourced statements (April 2018)
Carbazide Low Stub1 November 2014... (November 2014)
Carbodiimide Mid Start1 December 2009... (December 2009)
Carbohydrate conformation Low C3 January 2012Expert attention needed (January 2012), ... (January 2012)
Carbon in pulp Low C1 December 2009... (December 2009)
Carbon-based life Mid Start4 March 2015... (March 2015), Unsourced statements (March 2015, April 2015), Expansion needed (August 2015)
Carbonyl alpha-substitution reactions Low Start1 September 2015... (September 2015)
Carbonyl iron Low Start1 December 2007... (December 2007)
Carbon–carbon bond High Start1 October 2013... (October 2013)
Carbotanium Low Stub1 November 2010... (November 2010)
Carl Auer von Welsbach Mid Start1 April 2012... (April 2012)
Carl Axel Arrhenius Unknown Stub1 August 2008... (August 2008)
Casomorphin Mid Start2 August 2008... (August 2008), Potentially dated statements (2008)
Centrifugal evaporator Low Start4 September 2007... (September 2007), Unsourced statements (November 2015), Citation with bare URL, Citation lacking title
Centrifuge Mid Start2 January 2009... (January 2009), Unsourced statements (February 2012)
Centrosymmetry Mid Start1 December 2009... (December 2009)
Ceramic chemistry Low Start3 May 2010... (May 2010), Unsourced statements (June 2010, April 2012)
Charles Avery Doremus Low Start1 October 2013... (October 2013)
Charles E. Wicks Low Start2 July 2010... (July 2010), Notability unclear (July 2010)
Charles Upham Shepard Low Start2 December 2012... (April 2014), Orphaned (December 2012)
ChemXSeer Low Start2 November 2011... (November 2011), Web citation with no URL
Chemical bond Top C1 March 2015... (March 2015)
Chemical bonding model Mid Start1 January 2014... (January 2014)
Chemical change Mid Start2 January 2010... (January 2010), Sources lacking (September 2014)
Chemical energy Mid Start1 December 2015... (December 2015)
Chemical equation High C2 September 2011... (September 2011), Reference errors
Chemical equilibrium High C3 March 2009... (March 2009), Unsourced statements (July 2013), Citation with format and no URL
Chemical industry Mid Start5 June 2008... (June 2009), Unsourced statements (June 2008, May 2010), Weasel-worded phrases (November 2010), Introduction cleanup (December 2015)
Chemical physics High Start2 March 2014... (March 2014), Unsourced statements (December 2015)
Chemical polarity High C1 January 2015... (January 2015)
Chemical property Mid Stub2 August 2012Clarification needed (August 2012), ... (December 2017)
Chemical safety assessment Low Stub1 January 2010... (January 2010)
Chemical storage Mid Start1 February 2018... (February 2018)
Chemical structure High Stub5 July 2015Expert attention needed (July 2015), ... (October 2015), Unsourced statements (July 2015), In-text citations lacking (October 2015)
Chemical test Mid List3 February 2016Cleanup needed (February 2016), Prose needed (February 2016), ... (June 2017)
Chemical weapons in World War I Unknown Unassessed4 April 2009Unsourced statements (April 2009, September 2011, April 2011), ... (January 2012)
Chemiluminescence Mid B2 December 2014... (December 2014), Unsourced statements (September 2016)
Chemistry Top B3 July 2010Reliable references lacking (July 2010), ... (September 2014), CS1 errors: dates
Chiral column chromatography Low Start1 December 2009... (December 2009)
Chloramination Low Start1 August 2012... (August 2012)
Chlorofluorocarbon High B5 April 2010Unsourced statements (March 2011, March 2018), Disputed statements (April 2010), Clarification needed (June 2013), ... (February 2015)
Chloroorganic carrier Low Stub2 December 2014... (December 2014), Orphaned (December 2014)
Classical element Mid C4 May 2009... (May 2009), Unsourced statements (October 2013, December 2016), Expansion needed (December 2016)
Claude Louis Berthollet High Start1 January 2013... (January 2013)
Clerodane diterpene Low Stub2 March 2017Unsourced statements (March 2017), ... (March 2017)
Cloud point Low Stub1 February 2010... (February 2010)
Coal gas Low C4 October 2007... (June 2009), Expansion needed (October 2007), Clarification needed (February 2014), Unsourced statements (April 2018)
Coating Low Start2 April 2010In-text citations lacking (April 2010), ... (April 2014)
Coca alkaloid Low Stub1 July 2013... (July 2013)
Cohesion (chemistry) Mid Start1 March 2010... (March 2010)
Cold water extraction Low Stub1 May 2010... (May 2010)
College of Chemical Sciences Low Stub4 June 2011... (June 2011), Coordinates needed, Conflict of interest (June 2011), Wikilinks needed (January 2015)
Colloid High B4 July 2009Unsourced statements (July 2009, June 2014), ... (June 2014), Clarification needed (February 2017)
Color of chemicals Mid Start2 January 2008... (January 2008), Original research (November 2010)
Colored fire Mid List3 June 2017Unsourced statements (June 2017), Dead external links (February 2018), ... (April 2018)
Colorimeter (chemistry) Mid Start1 May 2010... (May 2010)
Combustion High C3 July 2016Disputed statements (July 2016), Accuracy disputes or self-published (July 2016), ... (January 2017)
Comet (pyrotechnics) Low Stub2 November 2012... (November 2012), In-text citations lacking (November 2012)
Commission on Isotopic Abundances and Atomic Weights Mid C1 March 2018... (March 2018)
Condensed aerosol fire suppression Low Start1 September 2013... (September 2013)
Condenser (laboratory) High B4 February 2015Unsourced statements (February 2015), ... (February 2015), Reliable references lacking (February 2015), Expansion needed (February 2015)
Conductive characteristics in coated synthetic fabrics Low Stub3 October 2010... (December 2011), Notability unclear (December 2011), Orphaned (October 2010)
Conductometry Low Start1 January 2010... (January 2010)
Conical measure Low Stub2 December 2009... (December 2009), Unsourced statements (September 2011)
Contact process Mid Start1 October 2010... (October 2010)
Controlled lab reactor Low Stub1 May 2018... (May 2018)
Conversion coating Low Stub1 September 2014... (September 2014)
Core charge Low Stub1 September 2011... (September 2011)
Corrosive substance Low Start1 June 2014... (June 2014)
Countercurrent chromatography Low Start2 September 2015... (September 2015), Unsourced statements (January 2018)
Crich beta-mannosylation Low C4 May 2009... (May 2009), Expert attention needed (January 2014), Orphaned (January 2011)
Crisscross method Low Stub1 March 2011... (March 2011)
Cross-reactivity Low Start1 August 2011... (August 2011)
Cryoscopic constant Low Stub1 February 2014... (February 2014)
CrystaSulf Low Start1 July 2016... (July 2016)
Crystal High B3 1999Potentially dated statements (1999), ... (September 2016), Unsourced statements (June 2017)
Crystal (software) Low Stub1 July 2017... (July 2017)
Cumulene Mid B1 June 2017... (June 2017)
Cuvette Low Start4 November 2017Cleanup needed (November 2017, November 2017), ... (November 2017), Clarification needed (January 2018)
Cyanoacrylate Mid C8 July 2013Unsourced statements (July 2013, September 2015, December 2015, April 2018), Potentially dated statements (2013), Web citation with no URL, Dead external links (May 2016), ... (December 2017)
Cyanogen halide Low Stub1 September 2012... (September 2012)
Cyclic compound High Start13 April 2015Expert attention needed (April 2015), Reliable references lacking (April 2015), Expansion needed (June 2015, April 2015), ... (April 2015, June 2015), Unsourced statements (April 2015, June 2015), Clarification needed (April 2015), Page number citations needed (April 2015, June 2015), Factual verification needed (April 2015)
Cyclohexane conformation Mid C10 January 2008... (January 2008, May 2014), Unsourced statements (January 2008, May 2014, August 2011), Clarification needed (May 2014), Reliable references lacking (May 2014), Cleanup needed (May 2014, May 2014), Rewrite needed (May 2014)
Cyrillization of chemical nomenclature Mid Start3 December 2017... (December 2017), Expansion needed (December 2017), Accuracy disputes or self-published (December 2017)
Dark current spectroscopy Low Stub1 March 2013... (March 2013)
Deamination Mid Start1 March 2014... (March 2014)
Dechlorinator Low Stub1 February 2017... (February 2017)
Deflagration to detonation transition Low Start3 February 2017Unsourced statements (February 2017), ... (February 2017), Dead external links (May 2018)
Dendrimer-encapsulated nanoparticles Low Stub1 July 2012... (July 2012)
Depsipeptide Low Stub3 June 2014Unsourced statements (June 2014), ... (June 2014), Clarification needed (June 2014)
Derivatization Mid Stub1 December 2015... (December 2015)
Desorption Low Start2 November 2013... (November 2013), In-text citations lacking (November 2013)
Detection limit Mid C4 January 2016Expert attention needed (January 2016), ... (January 2016), Accuracy disputes or self-published (January 2016)
Deuterium NMR Mid Stub2 January 2010Unsourced statements (January 2010), ... (March 2015)
Deville process Low Start1 August 2012... (August 2012)
Diagonal relationship Mid Start2 February 2007... (February 2007), Clarification needed (July 2017)
Diketopyrrolopyrrole dye Low Stub4 June 2016Expert attention needed (June 2016), ... (January 2017), Wikilinks needed (January 2017)
Dimer (chemistry) Mid Start1 April 2009... (April 2009)
Dishwasher salt Low Stub2 September 2012... (September 2012), In-text citations lacking (July 2016)
Dispersion (chemistry) Mid Start3 December 2013... (December 2013), Clarification needed (November 2014), Disputed statements (February 2018)
Dissociation (chemistry) High Start1 June 2014... (June 2014)
Dissolved organic carbon Mid Start2 October 2009... (October 2009), Unsourced statements (November 2017)
Distillation High B1 October 2014... (October 2014)
Distribution law Low Stub2 August 2017Detailed references needed, ... (August 2017)
Disulfide Mid C3 November 2012Unsourced statements (November 2012), ... (September 2015), Clarification needed (April 2016)
Djalma Guimarães Low Start1 March 2011... (March 2011)
Dmitri Mendeleev Top C2 July 2015Unsourced statements (July 2015), ... (March 2017)
Donald Othmer Low Start2 February 2015... (February 2015), Unsourced statements (May 2018)
Drain cleaner Low Start4 July 2014Unsourced statements (July 2014, November 2017, February 2018), ... (July 2014)
Dry etching Low Stub1 June 2016... (June 2016)
Ebullioscopic constant Low Stub1 June 2016... (June 2016)
Education in Chemistry Low Stub1 March 2015... (March 2015)
Elastolefin Low Stub1 May 2013... (May 2013)
Electrochemical cell High Start3 November 2017Sources lacking (November 2017), ... (November 2017), Expansion needed (May 2018)
Electrochemical fluorination Low C1 September 2016... (September 2016)
Electrode Low Start1 January 2010... (January 2010)
Electrometallurgy Low Stub1 July 2012... (July 2012)
Elemental analysis High Start1 December 2011... (December 2011)
Elementar Low Start2 August 2014... (August 2014), Orphaned (April 2015)
Eleutheroside Low Stub1 September 2014... (September 2014)
Elimination reaction of free radicals Mid Start5 October 2017Expert attention needed (October 2017), Too technical (October 2017), Style editing needed (October 2017), ... (October 2017)
Energy level High Start3 December 2009... (December 2009), Weasel-worded phrases (January 2014), Clarification needed (May 2014)
Enol High C8 October 2010Unsourced statements (October 2010, July 2015), Clarification needed (October 2010, July 2015), ... (July 2015), Expansion needed (July 2015), Reliable references lacking (July 2015), Disputed statements (July 2015)
Enthalpy of atomization Mid Stub1 August 2014... (August 2014)
Entropy of fusion Mid Stub1 December 2009... (December 2009)
Environmental impact of cleaning agents Low C1 June 2017... (June 2017)
Epitaxy Low C2 February 2012... (February 2012), URL error
Equivalence point Low Stub1 July 2013... (July 2013)
Ernst Otto Beckmann Low C2 February 2013... (February 2013), Dead external links (September 2017)
Estuarine acidification Low Start5 October 2013Detailed references needed, Expert attention needed (October 2013), ... (September 2014), Too technical (October 2013)
Ether High B1 December 2007... (December 2007)
Eugene Houdry Low Start1 November 2009... (November 2009)
European hazard symbols Mid Stub1 June 2016... (June 2016)
Evaporation High Start4 November 2008Expert attention needed (November 2008), Unsourced statements (January 2013), ... (August 2016)
Exothermic reaction High C1 June 2013... (June 2013)
Extensible Computational Chemistry Environment Mid Stub1 May 2016... (May 2016)
Extraction (chemistry) Mid Start5 May 2011... (May 2011), Cleanup needed (May 2014, May 2014, June 2015), Introduction cleanup (May 2014)
Factors of polymer weathering Low C1 August 2012... (August 2012)
Fat High Start6 October 2013Expert attention needed (April 2014, June 2015), Unsourced statements (September 2014), ... (October 2013), Too technical (June 2015)
Fernico Low Stub1 February 2013... (February 2013)
Ferronigerite-2N1S Low Stub1 January 2014... (January 2014)
Fiberglass Low C1 May 2017... (May 2017)
Fire Top B2 January 2010Unsourced statements (January 2010), ... (November 2014)
Firefly (computer program) Mid Stub1 May 2016... (May 2016)
Flamelet generated manifold Low Stub5 August 2014... (August 2014), Clarification needed (November 2015), Notability unclear (November 2015), Conflict of interest (November 2015), Disputed statements (November 2015)
Flash point Mid Start1 December 2015... (December 2015)
Flavor masker Low Stub1 December 2012... (December 2012)
Florence flask Low Stub1 November 2011... (November 2011)
Fluorescein diacetate hydrolysis Low Stub1 January 2007... (January 2007)
Foam Low C4 August 2012... (August 2012, December 2013, February 2015, June 2017)
Folch solution Low Stub1 June 2016... (June 2016)
Force field (chemistry) Mid C5 May 2010Unsourced statements (May 2010, August 2012, December 2017), Weasel-worded phrases (May 2010), ... (December 2017)
Forging temperature Low Stub1 May 2009... (May 2009)
Fractional coordinates Low Start3 June 2012Expert attention needed (June 2012), ... (August 2016)
Functional group Top Start1 August 2016... (August 2016)
Galvanization Mid Start8 May 2012... (May 2012), Unsourced statements (March 2013, February 2017, November 2017, March 2018), Weasel-worded phrases (March 2013), Clarification needed (February 2017, November 2017)
Gasochromism Low Stub2 August 2010... (August 2010), In-text citations lacking (August 2010)
Gel Mid C1 February 2017... (February 2017)
George Sarton Low Start1 December 2008... (December 2008)
Gibbs free energy Top B7 March 2015Expert attention needed (April 2018), Clarification needed (March 2015, October 2016), Dead external links (January 2017), ... (August 2017), Too technical (April 2018)
Glass tube Mid Stub1 December 2009... (December 2009)
Glenn T. Seaborg bibliography Low List2 November 2012... (November 2012), Incomplete lists (November 2012)
Globally Harmonized System of Classification and Labelling of Chemicals Mid Start7 May 2008Style editing needed (May 2008), In-text citations lacking (September 2013), Dead external links (September 2016), Vague or ambiguous time (February 2017), Unsourced statements (February 2017), Weasel-worded phrases (February 2017), ... (February 2017)
Glovebox Mid Start1 April 2011... (April 2011)
Glucosinolate Low Start3 January 2013... (January 2013), Unsourced statements (January 2013, April 2018)
Glycan Low Start1 May 2012... (May 2012)
Glycosidic bond Mid C1 May 2014... (May 2014)
Glycosyl Low Stub1 December 2009... (December 2009)
Green chemistry metrics Low Start2 March 2016... (March 2016), Reliable references lacking (March 2016)
Green death Low Stub1 October 2008... (October 2008)
Grote–Hynes theory Low Stub4 August 2015... (August 2015), Reliable references lacking (August 2015), Orphaned (August 2015), Wikilinks needed (September 2015)
Ground glass joint Low C2 November 2016... (November 2016), Clarification needed (June 2017)
Group 11 element Low Start2 February 2012Expansion needed (February 2012), ... (April 2013)
Gulal Low C4 June 2016Unsourced statements (June 2016, March 2017), NPOV disputes (June 2016), ... (October 2016)
Gum guaicum Low Stub1 April 2010... (April 2010)
Gérard Férey Mid Start2 August 2017... (August 2017), Dead external links (October 2017)
Half-reaction High Start1 June 2014... (June 2014)
Halide Low Start1 March 2018... (March 2018)
Hammett equation Mid Start11 June 2015Unsourced statements (June 2015), Style editing needed (June 2015), Update needed (June 2015), ... (June 2015), Reliable references lacking (June 2015), Cleanup needed (June 2015, June 2015), Clarification needed (June 2015), Factual verification needed (June 2015), Page number citations needed (June 2015), References lacking (June 2015)
Handbook of Porphyrin Science Low Stub2 August 2009... (August 2009), Orphaned (January 2011)
Hard water Mid Start1 June 2015... (June 2015)
Heat capacity High C6 August 2008Unsourced statements (August 2008, April 2010, February 2015), ... (October 2015, February 2015), Original research (February 2011)
Heat of combustion High Start3 May 2011Unsourced statements (May 2011, June 2015), ... (June 2015)
Heinrich Otto Wieland High Start2 June 2017... (June 2017), Unsourced statements (August 2017)
Henderson–Hasselbalch equation Mid C4 February 2017Expert attention needed (February 2017), Original research (February 2017), ... (February 2017)
Herbicide High C11 1992Potentially dated statements (1992), ... (August 2011), Unsourced statements (August 2011, June 2014, January 2015, May 2017), Weasel-worded phrases (July 2010, December 2012), Page number citations needed (January 2013), Expansion needed (December 2015), Viewpoints needed (October 2015)
Hermann Emil Fischer Mid C3 August 2017Web citation with no URL, Unsourced statements (August 2017), ... (October 2017)
Hermann Wilhelm Vogel Mid Start1 May 2012... (May 2012)
Herz reaction Mid Start1 December 2010... (December 2010)
Heterodiamond Low Stub1 January 2008... (January 2008)
Hexagonal phase Low Start1 September 2014... (September 2014)
Hexamine fuel tablet Low Start3 July 2007... (July 2007), Unsourced statements (February 2016, June 2015)
Hofmann voltameter Low Start1 October 2008... (October 2008)
Homology (chemistry) Low Stub1 November 2011... (November 2011)
Hoopes process Low Start1 May 2017... (May 2017)
Hot atom Low Stub1 March 2018... (March 2018)
Hot plate Low Start3 October 2010... (October 2010, September 2013), Original research (September 2013)
Houben-Weyl Methods of Organic Chemistry Low Stub1 August 2009... (August 2009)
Hybrid input output (HIO) algorithm for phase retrieval Low Start1 April 2010... (April 2010)
Hydrogen ion Low Start1 October 2014... (October 2014)
Hydrogen safety Low Start2 July 2011Limited geographic scope (July 2011), ... (November 2014)
Hydrolysis Top C2 April 2017... (April 2017), Original research (April 2017)
Hydroxyl radical Low C1 May 2010... (May 2010)
Hygroscopy High Start2 July 2009... (July 2009), Unsourced statements (September 2010)
Hypothetical types of biochemistry Low Start5 1998Potentially dated statements (1998), Unsourced statements (January 2012, February 2014), CS1 errors: external links, ... (December 2017)
Iain Paul Low Stub1 May 2016... (May 2016)
Ice Mid C2 March 2017... (March 2017), Dead external links (April 2018)
Ice crystals Mid Stub2 March 2015... (March 2015), Unsourced statements (October 2017)
In situ polymerization Low Stub4 April 2009... (April 2009), Cleanup needed (April 2009, April 2009), Orphaned (December 2015)
Initiation (chemistry) Mid Stub1 May 2010... (May 2010)
Inorganic compounds by element Low List3 August 2008Incomplete lists (August 2008, October 2017), ... (October 2017)
Institute for the History of Aluminium Low Stub2 July 2008... (July 2008), Wikilinks needed (June 2016)
International Chemical Safety Cards Mid Start1 September 2014... (September 2014)
International Year of Crystallography Low Stub3 January 2014Notability unclear (January 2014), ... (January 2014), CS1 errors: external links
Intramolecular force High Stub1 October 2017... (October 2017)
Intrinsic Noise Analyzer Low Stub5 July 2012Expert attention needed (July 2012), Context needed (July 2012), Introduction cleanup (July 2012), ... (July 2012)
Ionic potential Low Stub1 August 2017... (August 2017)
Ionic strength Mid Start1 October 2008... (October 2008)
Iron–hydrogen alloy Low B2 December 2014... (December 2014), Unsourced statements (December 2014)
Isotachophoresis Low Start2 November 2017In-text citations lacking (November 2017), ... (November 2017)
Isotopic labeling Mid C2 November 2011Unsourced statements (November 2011), ... (November 2011)
James B. Sumner High Start2 February 2013... (February 2013), Unsourced statements (January 2015)
James T. Grady-James H. Stack Award for Interpreting Chemistry Unknown Unassessed2 February 2018... (February 2018), Notability unclear (February 2018)
James W. Mayer Low Stub2 March 2018Sections needed (March 2018), ... (March 2018)
James Walker (chemist) Low Start1 February 2013... (February 2013)
Jeremy R. Knowles Low Start1 February 2013... (February 2013)
Joel Henry Hildebrand Low C1 March 2013... (March 2013)
John Bockris Low Start3 May 2015... (September 2015), Reference cleanup (May 2015), Peacock terms (September 2015)
Joseph Thomas Walker Low Start3 March 2015... (March 2015), Orphaned (May 2015), Peacock terms (March 2015)
Journal of Oil Palm Research Low Stub1 March 2015... (March 2015)
Journal of the Chemical Society Mid Start2 February 2015... (February 2015), Dead external links (February 2015)
Juan-Julio Bonet Sugrañes Unknown Unassessed2 January 2017... (January 2017), In-text citations lacking (January 2017)
Jöns Jacob Berzelius High Start2 January 2010... (January 2010), Unsourced statements (March 2011)
Kauri-butanol value Low Stub1 March 2012... (March 2012)
Khimera Low Start1 September 2009... (September 2009)
Kinetic Sand Low Stub1 November 2016... (November 2016)
Kinetic fractionation Low Stub1 December 2009... (December 2009)
Kintech Lab Low Start2 September 2009Notability unclear (September 2009), ... (September 2009)
Krakatoa (explosive) Low Start1 October 2008... (October 2008)
Laboratory centrifuge Low C1 February 2008... (February 2008)
Laws of science High Start2 February 2008... (February 2008), Merge needed (May 2018)
Lead–acid battery Mid C4 July 2013... (December 2013, December 2017), Clarification needed (July 2013), Dead external links (December 2016)
Lemon battery Low C1 January 2015... (January 2015)
Leo Brewer Low Start1 March 2013... (March 2013)
Limiting reagent Low Start1 June 2015... (June 2015)
Linear alpha olefin Low Start1 September 2011... (September 2011)
Lipophobicity Mid Start4 August 2012Unsourced statements (August 2012, May 2016, December 2015), ... (March 2018)
Liquefied petroleum gas Mid Start2 September 2009... (September 2009), Unsourced statements (June 2010)
Liquid Top B4 October 2014... (October 2014), Original research (October 2014), Unsourced statements (June 2017, July 2017)
Liquidus Low Start1 January 2014... (January 2014)
Liquid–liquid extraction Mid C5 March 2014Unsourced statements (May 2014), ... (March 2014, May 2014), Citation with bare URL, Citation lacking title
List of NA numbers Low List1 November 2016... (November 2016)
List of alchemical substances Low List2 August 2008Incomplete lists (August 2008), ... (August 2016)
List of benzo compounds Low List2 January 2010Orphaned (January 2010), ... (March 2014)
List of miscellaneous designer cannabinoids Low List1 May 2016... (May 2016)
List of naturally occurring tryptamines Low List2 August 2008Incomplete lists (August 2008), ... (November 2014)
List of unsolved problems in chemistry Low List8 November 2011... (December 2014), Expert attention needed (November 2011), Accuracy disputes or self-published (November 2011), Unsourced statements (December 2014), Reliable references lacking (December 2014), Weasel-worded phrases (December 2014), Factual verification needed (December 2014)
Lithium iron phosphate battery Mid Start9 April 2010Unsourced statements (April 2010, December 2010, February 2012, April 2013, February 2014, April 2016), Update needed (June 2014), ... (June 2014), Dead external links (January 2018)
Loker Hydrocarbon Research Institute Low Stub3 February 2015Coordinates needed, ... (February 2015), Notability unclear (February 2015)
Louise Hammarström Low Stub1 November 2012... (November 2012)
Lowry protein assay Mid Start1 March 2009... (March 2009)
Lye Low Start3 November 2014... (November 2014), Page number citations needed (November 2014), Unsourced statements (September 2016)
MKM steel Low Stub3 May 2016Unsourced statements (May 2016), ... (May 2016), Reliable references lacking (September 2017)
Macromolecule Mid C1 May 2013... (May 2013)
Magnesium alloy Low C3 August 2009Detailed references needed, ... (August 2009), Unsourced statements (January 2015)
Magnetic quantum number Mid Start2 May 2016... (May 2016), Disputed statements (May 2016)
Magnetic stirrer Mid Start1 September 2010... (September 2010)
Magnox (alloy) Low Start1 January 2015... (January 2015)
Martin Heinrich Klaproth High Start2 January 2013... (January 2013), Dead external links (January 2018)
Max Bodenstein Mid C1 February 2013... (February 2013)
Metabolite Mid Stub1 April 2013... (April 2013)
Metallic bonding High C3 October 2009... (October 2009, September 2014), Clarification needed (January 2014)
Metallurgical assay Mid Start1 May 2009... (May 2009)
Methylene group Low Stub2 January 2017Update needed (January 2017), ... (September 2017)
Methylthiomethyl ether Low Start1 June 2016... (June 2016)
Metrohm Low Start2 December 2016... (December 2016), Orphaned (September 2017)
Micro-compounding Low Start2 July 2012... (August 2012), Orphaned (July 2012)
Micro-encapsulation Mid C1 January 2017... (January 2017)
Micronization Low Start1 December 2009... (December 2009)
Microstructure Low C1 June 2007... (June 2007)
Microviscosity Low Stub1 September 2010... (September 2010)
Mineral hydration Low Start2 October 2015... (October 2015), Unsourced statements (March 2018)
Mixed potential theory Low Stub1 October 2008... (October 2008)
Mixer-settler Low C1 March 2016... (March 2016)
Modified starch Low Start3 May 2010... (May 2010), Unsourced statements (January 2011), Disputed statements (January 2011)
Molar mass High Start1 December 2008... (December 2008)
Molecular electronic transducers Low Start1 March 2009... (March 2009)
Molecular graphics Mid B3 June 2009... (June 2009), Unsourced statements (June 2014), Vague or ambiguous time (June 2014)
Molecular modification Low Stub1 January 2016... (January 2016)
Molecular property Mid Stub1 April 2007... (April 2007)
Monatomic gas Low Start2 May 2012... (May 2012), Dead external links (February 2018)
Mond gas Low Start1 March 2010... (March 2010)
Monosaccharide High Start2 July 2009... (July 2009), Context needed (September 2013)
Montan wax Low Stub1 February 2012... (February 2012)
Muhammad ibn Zakariya al-Razi Low C7 November 2010Unsourced statements (October 2012, November 2016), ... (May 2012), Factual verification needed (November 2010), Web citation with no URL, CS1 errors: dates, Dead external links (December 2017)
Multicolumn countercurrent solvent gradient purification Mid Start1 September 2008... (September 2008)
Mustard oil Low Start2 December 2008Unsourced statements (December 2008), ... (November 2013)
Máté Hidvégi Low Start1 April 2017... (April 2017)
Nanochemistry Mid Start1 December 2016... (December 2016)
Natural refrigerant Low Stub2 October 2016Expansion needed (October 2016), ... (January 2017)
Nickel–metal hydride battery Low C4 2005Potentially dated statements (2005), ... (July 2015), Clarification needed (January 2013), Unsourced statements (June 2015)
Nitrile rubber Low Start5 March 2008... (March 2008), Unsourced statements (February 2013, August 2014, June 2015, August 2017)
Noble gas compound Mid C9 January 2015Cleanup needed (January 2015, January 2015), ... (January 2015), Expansion needed (January 2015), Reliable references lacking (January 2015), Unsourced statements (January 2015), Weasel-worded phrases (January 2015), Vague or ambiguous time (January 2015), Factual verification needed (January 2015)
Non-bonding orbital Mid Start1 January 2008... (January 2008)
Non-methane volatile organic compound Low Stub1 February 2015... (February 2015)
Nuclear magnetic resonance spectra database Low Start2 March 2012Original research (March 2012), ... (June 2016)
Oil Mid C1 November 2017... (November 2017)
Oil mist Low Start1 April 2014... (April 2014)
Organic chemistry Top B2 February 2012Unsourced statements (February 2012), ... (December 2016)
Organic synthesis High B3 March 2016... (March 2016), Vague or ambiguous time (March 2016), Page number citations needed (March 2016)
Organoclay Low Stub2 February 2009Orphaned (February 2009), ... (September 2015)
Organolanthanide chemistry Mid Start1 May 2014... (May 2014)
Orgel diagram Low Stub1 December 2010... (December 2010)
Otto Hahn High B2 August 2017Unsourced statements (August 2017), ... (December 2017)
Overlayer Low Stub1 May 2016... (May 2016)
Oxidizing acid Low Stub1 May 2010... (May 2010)
Oxidizing and reducing flames Low Stub1 March 2015... (March 2015)
Ozone–oxygen cycle Mid Start1 September 2010... (September 2010)
PH indicator High Start1 May 2012... (May 2012)
PJ1 TrackBite Low Start4 February 2009... (February 2009), Unsourced statements (April 2010), Reliable references lacking (October 2015), Notability unclear (October 2015)
PSI (computational chemistry) Low Stub2 April 2011... (September 2014), Notability unclear (April 2011)
Paint Low C4 June 2008... (June 2008), Unsourced statements (August 2011, December 2015), Failed verification (December 2015)
Paint stripper Low Start3 May 2013Unsourced statements (May 2013), ... (June 2013), CS1 errors: dates
Paint thinner Low Stub1 July 2009... (July 2009)
Paper chemicals Low Start2 September 2015... (September 2015), Introduction cleanup (September 2015)
Paper chromatography High C1 February 2008... (February 2008)
Parafilm Low Stub3 November 2011Unsourced statements (April 2012), ... (November 2011), Original research (November 2011)
Parisa Mehrkhodavandi Low Start1 August 2017... (August 2017)
Partial molar property Mid C1 September 2008... (September 2008)
Particle segregation Low Start2 August 2011... (August 2011), Merge needed (March 2017)
Paul Flory Mid C1 February 2013... (February 2013)
Pauls Stradiņš Jr Low C1 June 2017... (June 2017)
Pensky–Martens closed-cup test Low Stub3 December 2008... (December 2008), In-text citations lacking (October 2011), Unsourced statements (December 2017)
Pentagonal bipyramidal molecular geometry Mid Stub3 April 2017Expert attention needed (April 2017), ... (April 2017)
Pentagonal planar molecular geometry Mid Stub1 June 2016... (June 2016)
Peptide synthesis High C9 November 2016Obsolete information (November 2016), Unsourced statements (November 2016, January 2018, May 2018), Reliable references lacking (November 2016), Original research (November 2016), Factual verification needed (November 2016), ... (November 2016, June 2017)
Peptidomimetic Low Start1 April 2007... (April 2007)
Perfluorinated compound Mid List4 2010Potentially dated statements (2010), ... (August 2015), Cleanup needed (September 2015), Prose needed (September 2015)
Periodic trends Mid C2 June 2007... (June 2007), Style editing needed (November 2015)
Peroxyacyl nitrates Mid Stub1 December 2010... (December 2010)
Petrochemistry Mid Stub2 July 2012Unsourced statements (July 2012), ... (December 2015)
Petroleum Mid B10 July 2010Detailed references needed, Unsourced statements (January 2013, November 2010, January 2015, March 2018), Failed verification (July 2010, March 2018), Update needed (April 2016, October 2017), ... (October 2016)
Peukert's law Mid Start2 February 2011... (February 2011), Unsourced statements (April 2015)
Phenol extraction Low Start3 April 2014Dead external links (April 2014), Style editing needed (April 2014), ... (February 2015)
Photodissociation Mid C2 August 2014... (August 2014), Dead external links (August 2014)
Photoionization detector Low Stub1 December 2009... (December 2009)
Pi bond Top C1 February 2013... (February 2013)
PiHKAL Low Start2 December 2007... (December 2007), Unsourced statements (April 2013)
Pietro Biginelli Unknown Unassessed1 April 2008... (April 2008)
Pipette Low Start2 July 2012... (July 2012), Unsourced statements (July 2016)
Piranha solution Low Start1 December 2014... (December 2014)
Pittcon Editors' Awards Low Start4 January 2012Conflict of interest (January 2012), Wikilinks needed (May 2013), Reliable references lacking (March 2018), ... (March 2018)
Plasma electrolytic oxidation Low Start1 April 2017... (April 2017)
Plasma-enhanced chemical vapor deposition Low Start2 April 2011... (April 2011), Unsourced statements (August 2011)
Plate reader Low Start3 November 2008... (April 2012), Expert attention needed (November 2008)
Plumber's putty Low Stub2 October 2013Original research (October 2013), ... (June 2016)
Polarimeter Mid Start1 December 2009... (December 2009)
Poly(methylsilyne) Low Start3 December 2017Expert attention needed (December 2017), ... (December 2017)
Polyetherimide Low Stub1 September 2014... (September 2014)
Polyhalogenated compound Mid Start1 February 2009... (February 2009)
Polyisocyanurate Low Start3 October 2012... (October 2012), Unsourced statements (April 2013), Reliable references lacking (April 2017)
Polymer brush Low Start2 December 2009... (December 2009), Expansion needed (March 2013)
Polyolefin Low Start3 January 2011... (January 2011), Page number citations needed (July 2013), Unsourced statements (November 2016)
Positive pressure personnel suit Low Start3 December 2011Expansion needed (December 2011), Dead external links (March 2017), ... (August 2017)
Potential determining ion Low Start2 August 2009Clarification needed (August 2009), ... (September 2014)
Potentiator Low Start1 April 2009... (April 2009)
Precipitation (chemistry) High C1 February 2008... (February 2008)
Product selectivity High Start2 September 2017... (September 2017), Reference cleanup (September 2017)
Propellant Unknown Unassessed2 January 2010... (March 2012), Disputed statements (January 2010)
Proteinoid Low Start4 December 2009... (December 2009), Citation lacking title, Unsourced statements (March 2014, September 2017)
Pseudorotation Low Stub2 December 2009... (December 2009), Unsourced statements (May 2014)
PubChem Low Start3 January 2009... (January 2009), Cleanup needed (November 2009, November 2009)
Q10 (temperature coefficient) Low Start1 December 2009... (December 2009)
Qualitative inorganic analysis High Start2 February 2013... (February 2013), Expansion needed (October 2014)
Quantitative analysis (chemistry) Mid Start1 June 2016... (June 2016)
Quickfit apparatus Low Start1 January 2015... (January 2015)
Quinhydrone electrode Low Start2 May 2009Unsourced statements (May 2009), ... (February 2013)
Raman microscope Low Stub1 February 2015... (February 2015)
Rapid Communications in Mass Spectrometry Low Stub1 August 2014... (August 2014)
Reactions on surfaces Low Start2 July 2012... (July 2012), Unsourced statements (September 2017)
Reactivity (chemistry) Mid Start2 June 2016... (June 2016), Unsourced statements (November 2017)
Rechargeable battery Low C2 November 2011Unsourced statements (November 2011), ... (September 2017)
Recrystallization (chemistry) High C2 October 2009... (October 2009), Merge needed (February 2018)
Reducing agent Low Start1 October 2016... (October 2016)
Reducing atmosphere Low Start1 May 2009... (May 2009)
Reduction potential High Start4 May 2008... (May 2008, October 2011), Unsourced statements (April 2012), Clarification needed (February 2012)
Refrigerant Low C6 May 2013Unsourced statements (December 2013, August 2015, March 2018), ... (December 2013), Accuracy disputes or self-published (May 2013), Dead external links (January 2017)
Remington Medal Low List1 January 2015... (January 2015)
Residual entropy Low Start1 February 2016... (February 2016)
Resonance (chemistry) High C3 December 2011Unsourced statements (December 2011, January 2017), ... (January 2017)
Retention uniformity Low Stub1 December 2011... (December 2011)
Retort Mid Start1 March 2008... (March 2008)
Reviews in Mineralogy and Geochemistry Low Stub1 May 2017... (May 2017)
Revista da Sociedade Brasileira de Química Low Stub1 July 2015... (July 2015)
Ripening Low Start6 February 2010... (February 2010), Expert attention needed (January 2013), Unsourced statements (July 2016, May 2017), Failed verification (July 2017)
Robert Boyle Mid B1 December 2017... (December 2017)
Robert H. Wentorf Jr. Low Start1 February 2013... (February 2013)
Roskamp reaction Low Start4 May 2017Orphaned (May 2017), Introduction cleanup (October 2017), Style editing needed (October 2017), ... (October 2017)
Round-bottom flask Mid Start1 December 2009... (December 2009)
Rule-based modeling Low Stub1 February 2012... (February 2012)
Rust High Start7 May 2012Unsourced statements (May 2012, November 2012, January 2014, December 2013, April 2014, February 2017), ... (June 2012)
Salicide Low Start1 September 2014... (September 2014)
Salt bridge Mid C1 September 2014... (September 2014)
Salting in Low Stub2 November 2015Unsourced statements (November 2015), ... (March 2016)
Samuel E. Horne Jr. Mid Start1 May 2015... (May 2015)
Sanger–Black apparatus Unknown Unassessed2 July 2014Orphaned (August 2014), ... (July 2014)
Saturate, aromatic, resin and asphaltene Low Stub1 November 2013... (November 2013)
Scoopula Low Start2 September 2015... (September 2015), Reliable references lacking (September 2015)
Selenonic acid Low Stub2 April 2017... (April 2017), Expansion needed (April 2017)
Semisynthesis Mid Start3 March 2017Unsourced statements (March 2017), Factual verification needed (March 2017), ... (March 2017)
Shell–Paques process Mid Start2 March 2008... (March 2008), Orphaned (April 2011)
Shock chlorination Low Stub2 January 2018... (January 2018), Unsourced statements (April 2018)
Sigma-Aldrich Low Start2 September 2013... (November 2014), Reliable references lacking (September 2013)
Silanization Low Stub3 July 2007... (July 2007), Expansion needed (August 2008, January 2011)
Single bond High Start2 July 2012Expansion needed (July 2012), ... (August 2012)
Singlet oxygen Mid C4 August 2015... (August 2015), Unsourced statements (August 2015), Reliable references lacking (August 2015), Factual verification needed (August 2015)
Smart polymer Low Stub4 September 2009Expert attention needed (September 2009), ... (March 2013), Introduction cleanup (March 2013)
Smoke Mid C2 February 2008Unsourced statements (February 2008), ... (July 2014)
Sodium cocoate Low Stub1 April 2017... (April 2017)
Sodium salts Low Stub1 December 2016... (December 2016)
Sol (colloid) Low Stub1 January 2015... (January 2015)
Solid Top Start1 May 2017... (May 2017)
Space-filling model Low Start3 June 2015... (June 2015), Reliable references lacking (June 2015), Factual verification needed (June 2015)
Spectroscopy Top B4 April 2016Citation with format and no URL, ... (April 2016), Cleanup needed (April 2016), Prose needed (April 2016)
Spiro compound Mid C11 February 2016Unsourced statements (February 2016), Citation with format and no URL, ... (February 2016), Reliable references lacking (February 2016), Expansion needed (February 2016), Self-contradictory articles (February 2016), Clarification needed (February 2016), Factual verification needed (February 2016, March 2016), Cleanup needed (October 2017, October 2017)
Standard Gibbs free energy of formation Mid List1 December 2011... (December 2011)
Steam High Start3 September 2013Unsourced statements (September 2013), ... (September 2013), Page number citations needed (September 2013)
Stereocenter High Start5 February 2016Expert attention needed (February 2016), ... (February 2016), Clarification needed (February 2016), Page number citations needed (February 2016)
Stress corrosion cracking Low C1 December 2007... (December 2007)
Structural isomer High Start2 November 2014... (November 2014), Disputed statements (November 2014)
Styrene-butadiene Low Start1 September 2015... (September 2015)
Substituted phenethylamine Low Start3 August 2014Unsourced statements (February 2016), ... (August 2014), Expansion needed (December 2015)
Syneresis (chemistry) Low Stub1 February 2015... (February 2015)
Synthetic rubber Mid Start3 May 2016Citation lacking title, CS1 errors: missing author or editor, ... (May 2016)
Syringe filter Low C2 February 2007... (February 2007), Unsourced statements (February 2007)
Tafel equation Low Start1 October 2008... (October 2008)
Tannin High C9 October 2010Unsourced statements (October 2015, March 2013, August 2017, October 2017), ... (October 2015, October 2017), Dead external links (October 2010, September 2016, January 2018)
Tautomer High B4 July 2015... (July 2015), Unsourced statements (July 2015), Reliable references lacking (July 2015), Factual verification needed (July 2015)
Tetrytol Low Stub1 January 2016... (January 2016)
The Sceptical Chymist Mid Start1 October 2011... (October 2011)
Theoretical oxygen demand Low Stub3 December 2008Expert attention needed (December 2008), ... (September 2014)
Thermal decomposition Mid Start2 August 2010Unsourced statements (August 2010), ... (October 2013)
Thermonuclear weapon Mid C9 September 2009Expansion needed (September 2009), ... (August 2013, December 2015), In-text citations lacking (August 2013), Reliable references lacking (October 2014, December 2016), Unsourced statements (January 2016, October 2017, November 2017)
Thermoplastic olefin Low Stub1 November 2015... (November 2015)
Thickening agent Low Start2 March 2014... (March 2014), Unsourced statements (December 2016)
Thistle tube Low Stub1 June 2016... (June 2016)
Tide (brand) Low Start3 January 2013Unsourced statements (September 2013), Potentially dated statements (January 2013), ... (March 2018)
Titanium Beta C Low Stub3 August 2012Cleanup needed (August 2012), ... (August 2012), Prose needed (August 2012)
Tonite (explosive) Low Stub1 March 2016... (March 2016)
Tool steel Low C1 August 2009... (August 2009)
Total dissolved solids Mid C1 February 2016... (February 2016)
Total organic carbon Mid Start6 January 2009... (January 2009, April 2012), Unsourced statements (April 2012, August 2013), Clarification needed (November 2016), Split needed (September 2017)
Toxinology Low Start3 February 2009... (February 2010), Expert attention needed (February 2009)
Triazole Mid Stub1 June 2009... (June 2009)
Trichothecene Low C2 October 2008... (October 2008), Unsourced statements (September 2010)
Tricyclic Mid Start1 January 2010... (January 2010)
Trihalomethane Mid Start1 March 2016... (March 2016)
UNS C69100 Low Stub1 June 2010... (June 2010)
Ullmann's Encyclopedia of Industrial Chemistry Low Stub1 October 2016... (October 2016)
Umpolung Mid C2 October 2011Unsourced statements (October 2011), ... (March 2018)
University of Edinburgh School of Chemistry Low Start3 April 2013Coordinates needed, ... (April 2013), Unsourced statements (May 2015)
Unsaturated fat Mid C3 January 2015... (January 2015), Unsourced statements (March 2017, April 2017)
Uranium oxide Low Stub1 December 2009... (December 2009)
Uranium tile Low Stub2 March 2018Unsourced statements (March 2018), ... (March 2018)
Vacuum distillation Low C5 February 2015... (February 2015), Reliable references lacking (February 2015), Expansion needed (February 2015), Cleanup needed (February 2015, February 2015)
Valency interaction formula Low Stub1 October 2012... (October 2012)
Valerie Ashby Low Start6 April 2016Introduction cleanup (April 2016), Promotional tone (April 2016), Reliable references lacking (April 2016), BLP articles lacking sources (August 2016), Unsourced statements (April 2018), ... (April 2018)
Van 't Hoff equation Mid C1 August 2017... (August 2017)
Van der Waals radius Mid B2 June 2015... (June 2015), Reliable references lacking (June 2015)
Van der Waals surface Low Stub3 July 2011... (July 2011), Unsourced statements (June 2015), Reliable references lacking (June 2015)
Variational transition-state theory Low Stub1 November 2008... (November 2008)
Vibrational bond Mid Start1 June 2015... (June 2015)
Vinylogy Low Start3 July 2014Expert attention needed (July 2014), ... (July 2014)
Viton Low Start1 December 2008... (December 2008)
Vladimir Haensel Low Start2 February 2012Unsourced statements (February 2012), ... (February 2013)
Volatilisation Low Start1 December 2009... (December 2009)
Volumetric pipette Low Stub1 October 2008... (October 2008)
Walter McCrone Low Start1 February 2018... (February 2018)
Water gas Low Start2 May 2015... (May 2015), In-text citations lacking (January 2017)
Water softening Mid Start3 March 2015Unsourced statements (March 2015), Introduction cleanup (November 2016), ... (March 2018)
Wax emulsion Low Stub2 June 2016... (June 2016), Orphaned (June 2016)
Wet storage stain Low Start1 March 2014... (March 2014)
William Howard Stein High Stub1 February 2013... (February 2013)
Willis R. Whitney Low Start1 March 2013... (March 2013)
Windshield washer fluid Low Start7 June 2010Detailed references needed, Unsourced statements (August 2010, November 2010), Clarification needed (June 2010), ... (January 2016), Weasel-worded phrases (January 2016), In-text citations lacking (January 2017)
World Wide Molecular Matrix Low Start4 December 2010... (December 2010), Unsourced statements (December 2010), In-text citations lacking (December 2010), Factual verification needed (December 2010)
X-ray absorption spectroscopy Low Start3 February 2012Unsourced statements (February 2012), ... (February 2015), Expansion needed (July 2017)
Xyloside Low Stub2 May 2010... (May 2010), Dead external links (July 2016)
ZINC database Mid Start1 April 2018... (April 2018)

Reliable references lacking (143)

ArticleImportanceClassCount OldestIssues
1,3-Dipolar cycloaddition Mid C1 January 2018... (January 2018)
AAG Gold Medal Mid Stub2 January 2015... (January 2015), Unsourced statements (April 2017)
Alexander Butlerov Chemistry Institute Low Start4 May 2017Coordinates needed, In-text citations lacking (May 2017), ... (May 2017), Categories needed (May 2017)
Alexander Just Low Start1 May 2015... (May 2015)
Anthony F. Hill Low Start2 May 2010... (May 2010), BLP articles lacking sources (May 2010)
Aromaticity High B6 January 2014... (April 2015), Factual verification needed (January 2014, October 2014, April 2015), Unsourced statements (June 2016), Expansion needed (April 2015)
BKChem Low Stub3 August 2011... (August 2011), Weasel-worded phrases (January 2014), Notability unclear (May 2015)
Beilstein database Low Start1 February 2013... (February 2013)
Biomonitoring Mid C6 April 2012Page number citations needed (April 2012), Unsourced statements (April 2016), Expansion needed (April 2016), Limited geographic scope (April 2016), ... (April 2016), Vague or ambiguous geographic scope (April 2016)
Bone char Mid Start2 April 2016Unsourced statements (April 2016), ... (January 2017)
Buchwald–Hartwig amination Mid C2 August 2016... (August 2016), Dead external links (November 2016)
C. Ainsworth Mitchell Low Start2 July 2016Clarification needed (July 2016), ... (October 2016)
CLP Regulation Mid Start4 November 2015Expert attention needed (November 2015), ... (November 2015), Too technical (November 2015)
Carbon sequestration Mid C9 August 2009Unsourced statements (August 2009, September 2010, January 2011, March 2015), ... (August 2015), Dead external links (June 2016, November 2016, January 2017), Merge needed (April 2018)
Center for Computational Chemistry Low Stub2 February 2009... (February 2009), Expansion needed (April 2014)
Chalcogen bond Low Start1 December 2017... (December 2017)
Chemical ecology Low Stub8 March 2017Detailed references needed, Expert attention needed (March 2017), Unsourced statements (March 2017), Weasel-worded phrases (March 2017), Self-contradictory articles (March 2017), Clarification needed (March 2017), ... (March 2017)
Chemistry Top B3 July 2010... (July 2010), References needed (September 2014), CS1 errors: dates
Chemistry of pressure-sensitive adhesives Low C1 April 2015... (April 2015)
Christopher M. Reddy Low Start2 September 2012... (September 2012), In-text citations lacking (March 2013)
Coal tar Mid C1 May 2015... (May 2015)
Cobalt(II)–porphyrin catalysis Low Start6 April 2017Expert attention needed (April 2017), Too technical (April 2017), Orphaned (April 2017), Wikilinks needed (May 2017), ... (May 2017)
Colloidal gold Mid C3 December 2016Unsourced statements (December 2016), ... (August 2017), Clarification needed (April 2018)
Condenser (laboratory) High B4 February 2015Unsourced statements (February 2015), References needed (February 2015), ... (February 2015), Expansion needed (February 2015)
Corexit Low Start3 August 2014Citation with bare URL, Citation lacking title, ... (August 2014)
Covalent bond High B1 March 2015... (March 2015)
Cyclic compound High Start13 April 2015Expert attention needed (April 2015), ... (April 2015), Expansion needed (June 2015, April 2015), References needed (April 2015, June 2015), Unsourced statements (April 2015, June 2015), Clarification needed (April 2015), Page number citations needed (April 2015, June 2015), Factual verification needed (April 2015)
Cyclohexane conformation Mid C10 January 2008References needed (January 2008, May 2014), Unsourced statements (January 2008, May 2014, August 2011), Clarification needed (May 2014), ... (May 2014), Cleanup needed (May 2014, May 2014), Rewrite needed (May 2014)
C–H···O interaction Low Start1 February 2018... (February 2018)
Duquenois–Levine reagent Mid Start1 August 2013... (August 2013)
Edgar Charles Bate-Smith Low Stub2 December 2012... (December 2012), Page number citations needed (December 2012)
Electrodeionization Low C1 December 2007... (December 2007)
Enol High C8 October 2010Unsourced statements (October 2010, July 2015), Clarification needed (October 2010, July 2015), References needed (July 2015), Expansion needed (July 2015), ... (July 2015), Disputed statements (July 2015)
Ethoxylation Mid Stub4 March 2016Unsourced statements (March 2016), ... (March 2016), Page number citations needed (March 2016), Factual verification needed (March 2016)
Eurokin Low Stub3 October 2010... (October 2010), Promotional tone (October 2010), Orphaned (October 2010)
European Chemical Industry Council High Start1 May 2015... (May 2015)
European Chemicals Agency Low Stub2 October 2011Unsourced statements (October 2011), ... (May 2015)
F-block metallocene Low Start2 March 2016Orphaned (March 2016), ... (March 2016)
Ferrous metallurgy Low B3 January 2015Unsourced statements (January 2015, November 2016), ... (June 2016)
Flame retardant High Start1 November 2016... (November 2016)
Free base Mid Stub1 March 2018... (March 2018)
Fullerene High B4 August 2015Cleanup needed (August 2015, August 2015), Unsourced statements (August 2015), ... (August 2015)
Functionalized polyolefins Mid Start5 March 2016Expert attention needed (March 2016), ... (March 2016), Weasel-worded phrases (March 2016), Orphaned (May 2016)
Galactomannan Mid C2 June 2017Unsourced statements (June 2017), ... (June 2017)
Gary E. Martin Low Start2 April 2011... (April 2011), BLP articles lacking sources (April 2011)
Germar Rudolf Low Stub4 October 2015BLP articles lacking sources (October 2015), ... (October 2015), Factual verification needed (October 2015), Introduction cleanup (October 2015)
Green chemistry metrics Low Start2 March 2016References needed (March 2016), ... (March 2016)
Grote–Hynes theory Low Stub4 August 2015References needed (August 2015), ... (August 2015), Orphaned (August 2015), Wikilinks needed (September 2015)
Gustavo Scuseria Low Stub3 May 2015... (May 2015), BLP articles lacking sources (May 2015), Orphaned (June 2016)
H. C. Ørsted Medal Low Stub2 August 2007... (August 2007), Update needed (March 2018)
Hammett equation Mid Start11 June 2015Unsourced statements (June 2015), Style editing needed (June 2015), Update needed (June 2015), References needed (June 2015), ... (June 2015), Cleanup needed (June 2015, June 2015), Clarification needed (June 2015), Factual verification needed (June 2015), Page number citations needed (June 2015), References lacking (June 2015)
Handbook of Electrochemistry Low Stub1 September 2010... (September 2010)
Higher Chemical College of the Russian Academy of Sciences Low Stub1 April 2011... (April 2011)
ICME cyberinfrastructure Low Start1 September 2012... (September 2012)
Indium-mediated allylation Low Start5 August 2012Expert attention needed (August 2012), Unsourced statements (August 2012), Too technical (August 2012), ... (June 2014)
Ion chromatography Low Stub4 May 2016Unsourced statements (May 2016, October 2017), CS1 errors: external links, ... (May 2016)
Ionosilica Unknown Unassessed5 November 2015Expert attention needed (November 2015), Orphaned (November 2015), Conflict of interest (November 2015), ... (April 2018)
Jay Switzer (chemist) Low Stub3 January 2018... (January 2018), BLP articles lacking sources (January 2018), Notability unclear (January 2018)
Jeehiun Lee Low Stub5 February 2009Orphaned (February 2009), BLP articles lacking sources (November 2012), ... (November 2012), Notability unclear (November 2012), Dead external links (March 2018)
Jesús Jiménez Barbero Low Stub3 May 2016... (May 2016), In-text citations lacking (May 2016), BLP articles lacking sources (May 2016)
Jing Li (chemist) Low Start3 November 2012BLP articles lacking sources (November 2012), ... (November 2012), In-text citations lacking (November 2012)
Julia R. Burdge Low Start4 March 2011... (March 2011), BLP articles lacking sources (March 2011, September 2012), Orphaned (September 2012)
Katsuko Saruhashi Low C1 May 2018... (May 2018)
Kimberly W. Anderson Low Start2 March 2018... (March 2018), Orphaned (March 2018)
Klaus-Dieter Hungenberg Low Start5 September 2013... (November 2013), Orphaned (September 2013), Peacock terms (November 2013), Reference errors, Dead external links (May 2017)
Leo Paquette Low Start7 January 2016... (January 2016), Unsourced statements (January 2016), Weasel-worded phrases (January 2016), BLP articles lacking sources (April 2016, January 2016), Factual verification needed (January 2016), Vague or ambiguous time (January 2016)
List of chemistry mnemonics Low List4 January 2012Cleanup needed (January 2012, January 2012), ... (January 2012), URL error
List of unsolved problems in chemistry Low List8 November 2011References needed (December 2014), Expert attention needed (November 2011), Accuracy disputes or self-published (November 2011), Unsourced statements (December 2014), ... (December 2014), Weasel-worded phrases (December 2014), Factual verification needed (December 2014)
Lithium-ion battery Low C16 June 2010Detailed references needed, Potentially dated statements (2017, January 2014, 2016), Disputed statements (June 2010), Unsourced statements (June 2014, September 2016, October 2017, February 2018), Dead external links (November 2015), ... (August 2014, November 2016), Failed verification (November 2013, February 2016, December 2016, February 2018)
Lydia Makhubu Low Start1 May 2018... (May 2018)
MDL Chime Low Stub3 July 2014In-text citations lacking (July 2014), ... (July 2014), Dead external links (May 2017)
MKM steel Low Stub3 May 2016Unsourced statements (May 2016), References needed (May 2016), ... (September 2017)
MOLCAS Low Start2 November 2012... (November 2012), Notability unclear (November 2012)
Macrocycle Mid C1 April 2015... (April 2015)
Melamine foam Low Start2 January 2016Vague or ambiguous time (January 2016), ... (May 2016)
Mesoporous organosilica Low C2 August 2016Citation lacking title, ... (August 2016)
Milton L. Lee Low Stub2 April 2014... (April 2014), BLP articles lacking sources (April 2014)
Mixed oxidant Low Start6 September 2015Expert attention needed (September 2015), ... (October 2015), Promotional tone (September 2015), Too technical (September 2015), Orphaned (June 2016)
Molden Low Stub2 April 2012... (April 2012), Notability unclear (April 2012)
Mol