Sodium Sulphite
Sodium Sulphite is a soluble sodium salt of Sulfurous Acid (sulphite). It is primarily used in the pulp and paper industry and as a food preservative (E221). A pale yellow, water-soluble solid, it is used commercially as an antioxidant and preservative.
- Synonyms
- Natriumsulfit, E 221, Na2SO3, Sodium Sulfite, Sodium Sulphite
- Chemical Formula
- Na2SO3
- CAS Number
- 7757-83-7
Characteristics
- Molar Weight
- 126.04 g/mol
- Melting Point
- 33.4°C
- Density
- 2.63 g/cc
- Forms
- Crystals, White, Yellow, Pale, Crystalline
Uses and Applications
Key applications
- Wastewater treatment
- Food additive
- Leather processing
- Plating
- Water treatment
- Pulp and paper
- Textile handling
- Rubber
Industries
- Pulp & Paper
- Beauty & Personal Care
- Water Treatment
- Chemical Processing