Sodium Metabisulfite
CAS No: 7681-57-4
Sodium metabisulfite is a white, crystalline powder with strong reducing properties used in food preservation, water treatment, and chemical synthesis.
Synonyms
Disodium Disulfite
Formula
Na₂S₂O₅
CAS No
7681-57-4
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Properties
- Molecular weight: 190.11 g/mol
- Aggregation state: Solid
- Density: ~1.48 g/cm³
- Melting point: ~150 °C (decomposes)
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Key applications
- Food preservative
- Oxygen scavenger
- Water treatment
- Photographic processing
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Industries
- Food
- Water Treatment
- Photography
- Chemical Manufacturing