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Topic starter 24/03/2022 10:31 pm
In lots of sources stated that diazo compound are great dies. Is this information still relevant? Are they still used for coloring stuff? Or is there more innovative compounds?
25/03/2022 11:35 am
As far as I know, among the diazo compounds there are dyes that are still used today.
Topic starter 29/03/2022 9:03 pm
@argentum But the synthesis is quite dangerous, is it still financially worth it?
Topic starter 08/04/2022 2:11 pm
@argentum Diazo salts can explode if they are stored in high temperatures. Even room temperature can be enough to cause detonation
08/04/2022 3:45 pm
Do you mean diazonium salts? I thought you were talking about diazo compounds
Topic starter 09/04/2022 10:55 am
@argentum Oh, yeah, my bad. Terminologies is still kinda hard for me
23/06/2022 3:12 am
is it still financially worth it?
The safety takes one of the last places in the question of fabric processes. Quite a large number of them are still using an extremely toxic, explosive, carcinogenic, environmental unfriendly compounds due to their cheapness. You can switch on the "green" processes in the lab or a pharmaceutical factory, but it pales on the background of dozens, hundreds, thousands tons per year which must be as cheap as possible no matter what. Thus, we are making plexiglas from prussic acid, extracting gold with cyanides, dyeing with benzidine and carcinogenic azo compounds, etc. You'll get used to it, don't worry
About the topic itself, azo group is a great and easy to obtain chromophore, so azo dyes are useful nowadays