Uses of Sodium Metabisulfite — Applications Guide

What is Sodium Metabisulfite?

Sodium Metabisulfite (CAS 7681-57-4) is a food grade chemical with molecular formula Na₂S₂O₅ and molecular weight 190.10 g/mol. Available in 97%/Food grade (E223) grades. Manufactured by Green Vision Technical Services, Nashik.

Applications & Uses

• Food preservative and antioxidant (E223)
• Wine and beer preservation
• Photography fixing
• Dechlorination of water
• Pharmaceutical antioxidant
• Textile bleaching

Industries Using Sodium Metabisulfite

Physical Properties

Appearance	White to pale yellow crystalline powder
Boiling Point	170°C (decomp)
Flash Point	N/A
Solubility	Freely soluble in water