Sodium Hydrosulphite
Sodium Hydrosulphite (better known as Sodium dithionite) is a white crystalline powder with a weak sulfurous odor. It is produced by various processes (conversion of sodium formate or sodiumborohydride with sulphur dioxide, reduction of sulphur dioxide with zinc powder or reduction of sodium sulphide with Sodium amalgam.
- Synonyms
- Sodium dithionite, Hydrosulfite, disodium dithionite
- Chemical Formula
- Na2S2O4
- CAS Number
- 7775-14-6
Characteristics
- Molar Weight
- 174.107 g/mol
- Melting Point
- 52°C
- Boiling Point
- decomposes
- Flash Point
- 100°C
- Density
- 2.38 g/cm³
- Forms
- Powder, White, Crystalline
Uses and Applications
Key applications
- Water treatment
- Reducing agent
- Decoloring agent
- Bleaching agent
Industries
- Pharma
- Cleaning
- Chemical Processing
- Food & Nutrition