出典:Wiktionary
出典:『Wiktionary』 (2024/08/04 02:02 UTC 版)
pyrogallol (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/07/18 20:07 UTC 版)
Pyrogallol or benzene-1,2,3-triol is a benzenetriol. It is a white crystalline powder and a powerful reducing agent. It was first prepared by Scheele 1786 by heating gallic acid. An alternate preparation is heating para-chlorophenoldisulphonic acid with potassium hydroxide.