Manufacture of detergents and cleaning products. Glass manufacturing. Textile dyeing and finishing processes. Pulp and paper industry. Thermal energy storage systems (heat storage). Laboratory reagent and chemical processing.Traditional medicinal use as a saline laxative (under appropriate guidance).

It is mainly used as a source of sodium sulphate in industrial and laboratory applications and as a thermal energy storage material due to its high heat of fusion.

Sodium sulphate decahydrate (Na2SO410H2O) is a crystalline odorless inorganic salt that contains ten molecules of water of crystallization. It is soluble in water and occurs naturally as the mineral Mirabilite.