M Formula: | ZnSO2 |
Properties: | |
White, crystalline powder. Decomposed by heat; salt of unstable sulfoxylic acid (H2SO2). A strong reducing agent. | |
Derivation: | |
Action of zinc and sulfuryl choride in ethereal solution or of sulfur dioxide on granulated zinc in absolute alcohol. | |
Use: | |
Stripping agent in dyeing. | |