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

Industries

  • Water Treatment
  • Pharma
  • Cleaning
  • Food & Nutrition
  • Polymers
  • Animal Nutrition
  • Agriculture
  • CASE & Construction