Sodium Hydrosulfite (Na2S2O4)
Chemical Information:
1. Formula: Na2S2O4
2. Molecular weight: 174.17 g/mol
3. CAS number: 7775-14-6
4. EINECS number: 231-867-5
Properties:
1. White or yellowish crystalline powder
2. Soluble in water, slightly soluble in ethanol
3. Melting point: 240-250°C (464-482°F) (decomposes)
Uses:
1. Reducing agent (textile, paper, and leather industries)
2. Bleaching agent (textiles, paper)
3. Food additive (preservative, antioxidant)
4. Pharmaceuticals (reducing agent)
5. Photography (developer)
Food Applications:
1. Preservative for fruits and vegetables
2. Antioxidant in food processing
3. Wine and beer stabilization
