Products - Calcium Sulphate 2-hydrate

Calcium Sulphate 2-hydrate

Formula: CaSO4.2H2O Molar mass: 172.172 g/mol Density: 2.32 g/cm3 The main use of calcium sulfate is to produce plaster of Paris and stucco. These applications exploit the fact that calcium sulfate which has been powdered and calcined forms a moldable paste upon hydration and hardens as crystalline calcium sulfate dihydrate. The calcium sulfate hydrates are used as a coagulant in products such as tofu. The main sources of calcium sulfate are naturally occurring gypsum and anhydrite, which occur at many locations worldwide as evaporites. These may be extracted by open-cast quarrying or by deep mining. World production of natural gypsum is around 127 million tonnes per annum.