What is Sodium Bisulphite

Sodium bisulphite is widely used in almost all commercial wines to prevent oxidation and preserve flavour. It is also used as a bleaching agent in the production and/or processing of paper, wool, cotton etc.

  • Synonyms: E222, SBS, Sodium Hydrogen Sulfite, Sodium Pyrosulfite
  • INCI: Sodium Bisulphite
  • Chemical Formula: NAHSO3
  • CAS Number: 7631-90-5

Product Specifications


Chemical Formula NAHSO3
CAS Number 7631-90-5
Molar Weight 104.055g/mol
Specific Gravity 1.310 – 1.370

Uses and Applications for Sodium Bisulphite


  • Pharma
  • Lubricants
  • Water Treatment
  • Oil & Gas
  • Cleaning
  • Animal Nutrition
  • Coatings & Construction
  • Food and Nutrition
  • Agriculture
  • Cosmetics
  • Polymers
  • Rubber

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