Category:Pyrogallol

Pyr`o*gal"lol, n. Etym: [pyrogallic + -ol.] (chem.)

Defn: a phenol metameric with phloroglucin, obtained by the Distillation of gallic acid as a poisonous white crystalline Substance having acid properties, and hence called also pyrogallic Acid. It is a strong reducer, and is used as a developer in Photography and in the production of certain dyes.