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.

Potassium pyrosulphite, Dipotassium disulfite, Dipotassium disulphite, Dipotassium Disulphite, E 224, PBMS, Potassium Pyrosulfite
K2O5S2
16731-55-8

222.312 g/mol
190 °C
2.34 g/cc
Powder, White, Yellow, Pale, Crystalline

  • Dyes
  • Food preservatives
  • Food additive
  • Antibacterial
  • Reducing agent
  • Wine production
  • Bleaching agent