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.
|Molar Weight||222.312 g/mol|
|Melting Point||190 °C|
|Forms||Powder, White, Yellow, Pale, Crystalline|
Synonyms: Potassium pyrosulphite, Dipotassium disulfite, Dipotassium disulphite, Dipotassium Disulphite, E 224, PBMS, Potassium Pyrosulfite
Chemical Formula: K2O5S2
CAS Number: 16731-55-8