Table of Contents
What is Pyrogallol?
Pyrogallol is an organic compound with the formula C 6 H 3 (OH) 3 . It is a white solid that is soluble in water and ethanol. Pyrogallol is a derivative of gallic acid.
General Properties of Pyrogallol
Pyrogallol is a white crystalline solid that is soluble in water and alcohol. It is a weak acid and has a pKa of 8.2. Pyrogallol is used as an antioxidant and a developer in photography. It is also used in the production of resins, plastics, and other organic chemicals.
Reactions of Pyrogallol
with Iron(III) Chloride
When pyrogallol is mixed with iron(III) chloride, a black precipitate forms. The precipitate is composed of iron(III) pyrogallate. This reaction is an example of a precipitation reaction.
Uses of Pyrogallol
Pyrogallol is used as an antiseptic, an antioxidant, and a dye. It is also used in photography and in the production of ink, paint, and other organic compounds.
