Sodium Bisulphate

It is majorly used in metal finishing and in cleaning products, like lowering the effective chlorination in swimming pools and hot tubs. In jewelry making, it is the primary ingredient used to remove the oxidation layer from surfaces and to restore glaze.


Molar Weight120.06 g/mol
Melting Point150 °C
Boiling Point315 °C
Density2.74 g/cc
FormsOff-White, Solid

Uses and Applications

Key applications

  • Water treatment
  • Cleaning products
  • Polishing and cleaning
  • Pulp and paper
  • Catalysts
  • Solvents
  • Agricultural (non-pesticide)
  • Bleaching agent
  • Paint and Coatings


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

Synonyms: Sodium acid sulfate, Sodium hydrogen sulfate, Bisulfate of soda, NaHSO4, Nitre Cake, Sodium Acid Sulfate, Sodium Bisulfate

Chemical Formula: NaHSO4

CAS Number: 7681-38-1