Talk:Azo compound

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what[edit]

what is the effect of strong acid on azo dyes stability?

Can you fix this?[edit]

Read the 2nd and 3rd sentence. The third makes no sense after reading the second. I think the third is trying to say that attached aromatic groups stabilize the diimide, but I don't know well enough to change it myself. ike9898 14:47, 28 July 2006 (UTC)[reply]

List of azo dyes[edit]

Do you think one would be appropriate in this article? Bhree 13:45, 3 December 2007 (UTC)[reply]

Inorganic[edit]

Azo compounds fall under the remit of Organic chemistry not Inorganic, I propose this first sentence is changed asap, although of course the classification system is completely arbitrary. Azo bob (talk) 17:58, 15 January 2008 (UTC)[reply]

Good work on the update, much happier now :) Azo bob (talk) 17:58, 15 January 2008 (UTC)[reply]

isn't this carcinogenic for bladder CA too?[edit]

i'm pretty sure, going to add it. change it if you find a source saying otherwise. —Preceding unsigned comment added by 99.22.220.61 (talk) 22:01, 5 July 2009 (UTC)[reply]

reference for bladder CA - http://emedicine.medscape.com/article/381323-overview —Preceding unsigned comment added by 99.22.220.61 (talk) 22:09, 5 July 2009 (UTC)[reply]

Bioremediation of azo dyes[edit]

It would be good if Wikipedia had coverage and links from this page (or from an azo dyes page) to bioremediation of waste water from the textile industry, but because I'm not a chemist, I won't attempt to set this up. Several organisms have been shown to do this effectively, including fungi, and the Lactobacillus casei page links to a paper on bacteria: Seesuriyachan P, Takenaka S, Kuntiya A, Klayraung S, Murakami S, Aoki K (2007). "Metabolism of azo dyes by Lactobacillus casei TISTR 1500 and effects of various factors on decolorization". Water Res. 41 (5): 985–92. doi:10.1016/j.watres.2006.12.001. PMID 17254626. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link) Nadiatalent (talk) 15:28, 24 January 2010 (UTC)[reply]

Looks like an interesting result, and it is always amazing to see the many synthetic compounds that are degraded microbially. With regards to incorporating the report into the article, my guess is that Wikipedia will wait until the finding has been shown to be notable, i.e. implemented commercially, or shown to be important in the environment as demonstrated by others citing this work. --Smokefoot (talk) 15:37, 24 January 2010 (UTC)[reply]

As dyes and pigments[edit]

It says, "Azo pigments are colorless particles (typically earths or clays), which have been colored using an azo compound."

What azo pigment manufacturer uses natural earths or clays? I would be surprised if there are any. The traditional substrate for tinted pigments ("lakes") is hydrated alumina, but various metal salts and other compounds are used. — Preceding unsigned comment added by Jive Dadson (talk • contribs) 03:31, 26 March 2011 (UTC)[reply]

Azo compounds are those which contains N=N.  — Preceding unsigned comment added by 117.194.15.205 (talk) 17:16, 21 January 2018 (UTC)[reply]

Banned in America?[edit]

Are all azo dyes banned in America? — Preceding unsigned comment added by Singsongerd (talk • contribs) 16:03, 9 June 2014 (UTC)[reply]

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External links modified[edit]

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A Commons file used on this page has been nominated for speedy deletion[edit]

The following Wikimedia Commons file used on this page has been nominated for speedy deletion:

A bis-azo compound depicted as eagle.jpg

You can see the reason for deletion at the file description page linked above. —Community Tech bot (talk) 19:36, 12 January 2020 (UTC)[reply]