Ammonium Sulphate

Its primarily used as a fertiliser for alkaline soils as it helps lower the pH balance of the soil, while contributing essential nitrogen for plant growth. As a food additive it is used as an acidity regulator in flours and breads. In medicines is a widely used reagent in molecular biology and for the purification of antibodies.


Molar Weight132.134 g/mol
Melting Point235-280°C
Density1.77 g/cc
FormsCrystals, White, Granules

Uses and Applications

Key applications

  • Dyes
  • Hair care
  • Laboratory chemicals
  • Fabric, textile and leather products
  • Oxidising agent
  • Flame retardant
  • Glass
  • Textile handling
  • Pharmaceuticals
  • Floor coverings


  • Pulp & Paper
  • Pharma
  • Oil & Gas
  • Cleaning
  • Coatings & Construction
  • Cosmetics
  • Water Treatment
  • Food
  • Animal Nutrition
  • Agrobusiness
  • Lubricants
  • Chemical Processing

Synonyms: Actamaster, Ammoniumsulfat (2:1), Diammonium sulfate, Mascagnite, Sulfuric acid diammonium salt, Ammonium Sulfate, Ammonium Sulphate, AMS, AS, Diammonium Sulfate, Diammonium Sulphate, Sulfuric Acid, Diammonium Salt, Sulphate of Ammonia

Chemical Formula: (NH4)2SO4

CAS Number: 7783-20-2