Potassium Metabisulphite
Potassium metabisulfite is a food preservative, which preserves the natural colour of food and protects food against bacteria. The winemaking industry uses it as an additive during the bottling process.
- Synonyms
- Potassium pyrosulphite, Dipotassium disulfite, Dipotassium disulphite, Dipotassium Disulphite, E 224, PBMS, Potassium Pyrosulfite
- Chemical Formula
- K2O5S2
- CAS Number
- 16731-55-8
Characteristics
- Molar Weight
- 222.312 g/mol
- Melting Point
- 190 °C
- Density
- 2.34 g/cc
- Forms
- Powder, White, Yellow, Pale, Crystalline
Uses and Applications
Key applications
- Dyes
- Food preservatives
- Food additive
- Antibacterial
- Reducing agent
- Wine production
- Bleaching agent