Sodium Sulphate

Sodium sulfate is the inorganic compound with formula Na₂SO₄ as well as several related hydrates. All forms are white solids that are highly soluble in water.

  • Formula: Na2SO4
  • Molar mass: 142.04 g/mol
  • Melting point: 884 °C
  • Density: 2.66 g/cm³
  • Boiling point: 1,429 °C
  • Soluble in: Water


  • As filler in powdered home laundry detergents
  • In Kraft process for the manufacture of wood pulp
  • Used as a fining agent
  • Textiles
  • Dyes
  • Thermal storage


Technical Name Sodium Sulphate
Formula Na2SO4
Appearance White Powder
Assay min 99%
White Degree min 85%
Moisture max 0.1%
Chloride max 0.15%
Fe max 0.002%
pH of 5% sol 6-7
Water Insoluble max 0.01%

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