Talk:Diphosgene

Chemicals Mid‑importance

	This article is within the scope of WikiProject Chemicals, a daughter project of WikiProject Chemistry, which aims to improve Wikipedia's coverage of chemicals. To participate, help improve this article or visit the project page for details on the project.ChemicalsWikipedia:WikiProject ChemicalsTemplate:WikiProject Chemicalschemicals articles
Mid	This article has been rated as Mid-importance on the project's importance scale.

Military history: Technology / Weaponry / World War I

This article is within the scope of the Military history WikiProject. If you would like to participate, please visit the project page, where you can join the project and see a list of open tasks. To use this banner, please see the full instructions.Military historyWikipedia:WikiProject Military historyTemplate:WikiProject Military historymilitary history articles

This article has been checked against the following criteria for B-class status:
Referencing and citation: criterion not met Coverage and accuracy: criterion not met Structure: criterion met Grammar and style: criterion met Supporting materials: criterion met

Associated task forces:
/
	Military science, technology, and theory task force
	Weaponry task force
	World War I task force

Untitled[edit]

This page is taken almost word for word from http://diphosgene.iqnaut.net/ without so much as a footnote or citation

You may not have noticed the text at the bottom of that page: "iqnaut.net, 2005. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Diphosgene"." There is a correct citation: they cite us. – Clockwork Soul 01:26, 30 March 2006 (UTC)[reply]

I see no such text... 83.227.130.26 (talk) 08:55, 17 July 2009 (UTC)[reply]

Industrial use[edit]

I have worked for and with a number of companies that make diisocyanates on an industrial scale, and to the best of my knowledge none of them use diphosgene. I did a search and could find nothing to contradict this. The 2005 edition of Ullmann's Encyclopedia of Industrial Chemistry, [1], makes no mention of diphosgene in its article on diisocyanates. One reason for this may be that large scale synthetic photochemical reactions are rare. As my old photochemistry professor used to say "Photons aren't cheap reagents".

Consequently, I removed the sentence about diphosgene replacing phosgene in the production of diisocyanates. Silverchemist (talk) 16:44, 14 January 2012 (UTC)[reply]

Clarification needed[edit]

Is diphosgene a replacement for phosgene that is used directly as a replacement for the phosgene, or is it used as a conveninient source for preparing phosgene which is then used in the normal fashion? Of course, it could also be that it is used as a direct replacement with a reaction mechanism involving transient formation of phosgene then reacting with other reagents. The present text is vague or ambiguous and needs clarification. 150.227.15.253 (talk) 09:46, 18 November 2021 (UTC)[reply]