Sodium Sulphite Anhydrous

SODIUM SULPHITE ANHYDROUS

Technical grade

USES OF SODIUM SULPHITE

• Oxygen scavenger for water treatment in photographic industry.
• To wash fixer, sodium thiosulphate from film and photopaper emulsions.
• As a bleaching, desulphurizing and dechlorinating agent in the textile industry.
• Used as a sulphating and sulphomethylating agent.
• Used in the production of sodium thiosulphate
• Used in oil recovery.
• Used in the making of dyes.
• Used as a water treatment to reduce chlorine levels in pools.

Properties:

• CAS No: 7757-83-7
• Other names: Sodium sulfite, Hypo Clear (photography)
• Appearance: white solid
• Formula: Na₂SO₃
• Density: 2.633 g/cm³
• Solubility: 67.8 g/100 g @20^oC
• Molecular weight: 126.043 g/mol
• Melting point: 500^oC

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