Commons:WikiProject Chemistry/Deletion requests

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File:CashmeranStructure.png[edit]

Low quality; replaced by File:Musk indanone.svg and File:Cashmeran.svg. Leyo 11:43, 19 December 2014 (UTC)

File:Arsenic trioxide.png[edit]

Incorrect chemical structure. See Category:Arsenic trioxide or en:Arsenic trioxide. Leyo 23:34, 18 December 2014 (UTC)

File:Molybdic acid.png[edit]

Such a structure does not exist (see de:Molybdänsäure). As a hypothetical structure, there is an SVG version available. Leyo 23:27, 18 December 2014 (UTC)

File:Antimony pentasulfide.svg[edit]

PubChem is not a reliable source for structural information (automatically drawn). Its structure is unknown according to: Arnold F. Holleman, Nils Wiberg: Lehrbuch der Anorganischen Chemie, 102. Auflage, de Gruyter, Berlin 2007, S. 849, ISBN 978-3-11-017770-1. Leyo 23:08, 18 December 2014 (UTC)

File:Essigsäure.svg[edit]

Low quality (e.g. alignment), orphaned, many better alternatives in Category:Acetic acid. Leyo 22:53, 18 December 2014 (UTC)

File:Strukt vzorec kys-octova.PNG[edit]

Low quality, orphaned, many better alternatives in Category:Acetic acid. Leyo 22:51, 18 December 2014 (UTC)

File:Е217.jpeg[edit]

Unused, lower-quality for same structure and types of details as File:Propylparaben ball-and-stick.png. Chemical is not even correct for its name (E217 is the phenoxide sodium salt, this is E215 the neutral phenol), and admins are not willing to rename it to be correct (or even further discuss why not--see User talk:Marcus Cyron#File:Е217.jpeg declined rename). DMacks (talk) 20:25, 18 December 2014 (UTC)

File:Strukt vzorec malathion.PNG[edit]

low quality, alternative (File:Malathion - Malathion.svg) there Kopiersperre (talk) 17:47, 18 December 2014 (UTC)

File:Sandmeyer.png[edit]

now obsolete (File:Sandmeyer.svg) Kopiersperre (talk) 13:07, 17 December 2014 (UTC)

File:Neon Element 10.JPG[edit]

out of scope (text jpg) Kopiersperre (talk) 18:21, 16 December 2014 (UTC)

File:Fig 5A Degradation of polycarbonate to BPA.jpg[edit]

All structures are missing methyl groups. ChemNerd (talk) 14:13, 16 December 2014 (UTC)

File:Fig 1A Degradation of polycarbonate.jpg[edit]

Structures are missing methyl groups. ChemNerd (talk) 14:14, 16 December 2014 (UTC)

File:Fig 2A Degradation of polycarbonate.jpg[edit]

Structures are missing methyl groups. Dubious existence of carbonate half esters. ChemNerd (talk) 14:15, 16 December 2014 (UTC)

File:Fig 3A Degradation of polycarbonate.jpg[edit]

Structures are missing methyl groups. Dubious existence of carbonate half esters. ChemNerd (talk) 14:15, 16 December 2014 (UTC)

File:Fig 4A Degradation of polycarbonate.jpg[edit]

Structures are missing methyl groups. Dubious existence of carbonate half esters. ChemNerd (talk) 14:15, 16 December 2014 (UTC)

File:Fig 6A Thermal degradation.jpg[edit]

Polycarbonate is a polymer, but the structure here is drawn as a monomer. It is not even the correct monomer because of missing hydroxyl and methyl groups. The "2" in CO2 should also be subscripted. ChemNerd (talk) 14:02, 16 December 2014 (UTC)

File:2011 Umweltbundesamt Quecksilberemissionen ÖKOPOL-Grafik.jpg[edit]

It says Grafik: Ökopol GmbH 2014, i.e. the figure does not seem to be created by the uploader. In addition, {{badJPG}}. Leyo 11:34, 16 December 2014 (UTC)

Symbol keep vote.svg Keep Please look file:2013-06-06 Fresenius-Fachtagung ÖKOPOL-Tebert BVT-Auswirkungen.pdf. The uploader works in Ökopol. This can very well be self-done. Also please look discussion page, where the uploader says the same. Taivo (talk) 18:41, 18 December 2014 (UTC)

File:2013-UN-Report Global-Mercury-Emissions 2010 ÖKOPOL-Grafik.jpg[edit]

It says Grafik: ÖKOPOL-Institut 2014, i.e. the figure does not seem to be created by the uploader. Leyo 11:32, 16 December 2014 (UTC)

in my opinion, this image is of simple geometry and ineligible for copyright -> Symbol keep vote.svg Keep.--Wdwd (talk) 20:19, 17 December 2014 (UTC)
Symbol keep vote.svg Keep Please look file:2013-06-06 Fresenius-Fachtagung ÖKOPOL-Tebert BVT-Auswirkungen.pdf. The uploader works (at least worked) in Ökopol. This can very well be self-done. Taivo (talk) 18:37, 18 December 2014 (UTC)

File:Dithionic acid 2-D structure.png[edit]

Low quality, better alternatives in Category:Dithionic acid. Leyo 23:34, 15 December 2014 (UTC)

No problem . It is an old image and there are now better ones. Axiosaurus (talk) 13:01, 18 December 2014 (UTC)

File:Sulfurous acid 2-D structure.png[edit]

Low quality (pixelated), better alternatives in Category:Sulfurous acid. Leyo 23:30, 15 December 2014 (UTC)

File:Penflufen.png[edit]

File:Penflufen structuur.png is better Kopiersperre (talk) 14:14, 15 December 2014 (UTC)

File:Tert-butanol Structure.jpg[edit]

very low quality Kopiersperre (talk) 11:01, 15 December 2014 (UTC)

File:Terbutaline1.png[edit]

Low quality, better alternatives available. Leyo 01:32, 14 December 2014 (UTC)

  • BA candidate.svg Weak oppose None of your alternatives actually show the same diagram. I have opted to mark the file as should be svg. If someone converts it then it will have unlimited resolution... EoRdE6(Come Talk to Me!) 04:36, 14 December 2014 (UTC)
    There is no need to have a structural formula in this unusual style. --Leyo 11:56, 14 December 2014 (UTC)
  • Symbol delete vote.svg Delete Per nom, superceded. --Yikrazuul (talk) 19:30, 15 December 2014 (UTC)

This deletion debate is now closed. Please do not make any edits to this archive. You can read the deletion policy or ask a question at the Village pump. If the circumstances surrounding this file have changed in a notable manner, you may re-nominate this file or ask for it to be undeleted.

File:Triglyceride Synthesis.png[edit]

The website from which this image was copied says "We will usually grant all reasonable requests for permission for figures in these documents to be used elsewhere for non-profit-making purposes, provided the source is acknowledged, but we retain the copyright." (http://lipidlibrary.aocs.org/news/llcredit.html) This is inconsistent with the licensing tag placed on this image which says "The copyright holder of this file allows anyone to use it for any purpose, provided that the copyright holder is properly attributed. Redistribution, derivative work, commercial use, and all other use is permitted." Evidence that a request was made to use the image on Wikimedia/Wikipedia is necessary. ChemNerd (talk) 14:49, 12 December 2014 (UTC)


Deleted: as above. Yann (talk) 05:42, 19 December 2014 (UTC)

This deletion debate is now closed. Please do not make any edits to this archive. You can read the deletion policy or ask a question at the Village pump. If the circumstances surrounding this file have changed in a notable manner, you may re-nominate this file or ask for it to be undeleted.

File:Albuterol.png[edit]

obsolete chemical drawing Kopiersperre (talk) 17:49, 11 December 2014 (UTC)


Deleted: Ed (Edgar181) 14:02, 18 December 2014 (UTC)

This deletion debate is now closed. Please do not make any edits to this archive. You can read the deletion policy or ask a question at the Village pump. If the circumstances surrounding this file have changed in a notable manner, you may re-nominate this file or ask for it to be undeleted.

File:E125.jpg[edit]

Large white margins, poor fileformat choice. Have File:E125.png by same uploader. Also habe File:Scarlet GN.svg (though that is with explicit sodiums) DMacks (talk) 17:05, 10 December 2014 (UTC)


Deleted: as above. Yann (talk) 13:12, 17 December 2014 (UTC)


Categories for discussion[edit]

Category:N,N-disubstitued primary amides[edit]

Doesn't a "primary amide" has two H on the N by definition of primary and if it's N,N-disubstituted (note mis-spelling also), it would be a tertiary amide instead? (See en:IUPAC nomenclature of organic chemistry#Amines and Amides and en:Amide). It was formerly Category:Tertiary amides and renamed without discussion or comment; I'm proposing it be put back. Also bundling with this:

For same nomenclature and spelling problems. DMacks (talk) 18:40, 16 July 2013 (UTC)

No, no and no. A secondary amide is an amide with two carbonyl groups on the nitrogen. Same principle for the tertiary. This is the IUPAC nomeclature [1]. Rhadamante (talk) 22:28, 16 July 2013 (UTC)
Ah great, thanks for checking an authoritative ref. But that's a bunch of textbooks that need to be corrected to match the spec instead of common usage. First general/organic/biochem undergrad on my desk and online MCAT prep-flashcards get it wrong, along with common use in ACS literature:( So we're down to just a spelling error and some wikipedia articles to fix? DMacks (talk) 02:16, 17 July 2013 (UTC)
I guess so... To be honest, I was also surprised the fist time I saw that, when it was "fixed" 5 years ago on fr: ([2], with the non-questionable reference... But since then I try to correct this mistake propagated everywhere... Rhadamante (talk) 04:33, 17 July 2013 (UTC)
Looking at that ref and [3], are Category:Imides and Category:Secondary amides actually synonymous? DMacks (talk) 15:02, 18 July 2013 (UTC)
Nomenclature and traditions are not that clear on this. Certain people consider yes, the two terms are synonyms, and for a while category Category:Secondary amides was a redirection to Category:Imides. Other restrain the name "imide" to cyclic secondary amides. We have finally chosen the second option on fr:, but there is no absolute consensus on this. Rhadamante (talk) 17:44, 19 July 2013 (UTC)
This is a case where IUPAC nomenclature and common usage differ. Personally, I think we should stick with what most chemists and know and learn. Having worked for ~20 years with chemists from N. America, Europe and Asia I have never encountered anyone who doesn't define primary amide as RCONH2, secondary amide as RCONHR, and tertiary amide as RCONRR. The purpose of Commons is to serve the user and we shouldn't let nomenclature pedantry get in the way of that. With respect to amides, our current method of categorization makes it harder for people to find the images they are looking for. I don't think it is a "mistake" to categorize amides the way that most chemists categorize amides just because IUPAC has a different and unusual way of defining them. Ed (Edgar181) 10:48, 22 July 2013 (UTC)
I strongly disagree with this. IUPAC defines the nomenclature, we're not here to judge what we decide to apply or not. Rhadamante (talk) 05:40, 23 July 2013 (UTC)
But that is not the case at all. It is entirely untrue. We decide all the time which IUPAC rules we will use and which ones we will not. Articles and categories are titled by common names all over Wikipedia and Commons. Why do we have w:en:Cocaine, w:fr:Catégorie:Cocaïne, Cocaine, Category:Cocaine, w:de:Kokain, etc. but no article or category titled methyl (1R,2R,3S,5S)-3-(benzoyloxy)-8-methyl-8-azabicyclo[3.2.1]octan-2-carboxylate? When it suits our needs we routinely ignore IUPAC nomenclature rules and and go with common nomenclature. Why shouldn't we do so in this case? Ed (Edgar181) 13:44, 23 July 2013 (UTC)
First there is a difference between names, that have synonyms that could be more often employed than the systematic name, and the classification of function that should be unique, and rule by IUPAC. Secondly, I'm not even sure "(1R,2R,3S,5S)-3-(benzoyloxy)-8-methyl-8-azabicyclo[3.2.1]octan-2-carboxylate" is the IUPAC name for cocaine. It's for sure the systematic name, but IUAPC sometimes also decides to use more common terms to design some very famous chemical substance, for example acetic acid, which is IUAPC name, vs etahnoic acid, the systematic name. Rhadamante (talk) 21:08, 23 July 2013 (UTC)

More to the point, it's "substituted", not "substitued". DS (talk) 13:36, 25 June 2014 (UTC)

Exact. My mistake. Regardless the current dispute, these categories should be renamed with the correct term, "substituted". Rhadamante (talk) 15:20, 25 June 2014 (UTC)
I have placed a request at User:CommonsDelinker/commands to have the bot rename the three categories. Ed (Edgar181) 18:47, 25 June 2014 (UTC)


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