What is Sodium Metabisulphite

It is used as a preservative and antioxidant in food. It is used as a cleaning agent for potable water desalination systems and used to remove chloramine from drinking water after treatment.

  • INCI: Sodium Metabisulphite
  • Chemical Formula: Na2S2O5
  • CAS Number: 7681-57-4

Product Specifications


Chemical Formula Na2S2O5
CAS Number 7681-57-4
Molar Weight 190.095g/mol
Specific Gravity 1.310 – 1.370
Melting Point 170 °C

Uses and Applications for Sodium Metabisulphite


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

Purchase options for Sodium Metabisulphite

Can't find the product you're looking for? Our team can help you find it! Please contact us

What would you like to do next?

View all products