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Sodium Sulphate Anhydrous - Manufacturers, Suppliers and Exporters


Molecular formula Na2SO4
142.04 g/mol (anhydrous)
Molar mass 322.20 g/mol (decahydrate)
Appearance white crystalline solid
2.664 g/cm3 (anhydrous)
Density 1.464 g/cm3 (decahydrate)
Melting point 884 °C (anhydrous)
32.4 °C (decahydrate)
Boiling point 1429 °C (anhydrous)
Solubility in water 47.6 g/L (0 °C)
427 g/L (100 °C)
Solubility insoluble in ethanol
Refractive index (nD) 1.468 (anhydrous)
1.394 (decahydrate)



USAGES : Sodium sulphate is mainly used for the manufacture of detergents and in the Kraft process of paper pulping. About two-thirds of the world's production is from mirabilite, the natural mineral form of the decahydrate, and the remainder from by-products of chemical processes such as hydrochloric acid production.