Calcium sulfide (CaS)-Powder introduce:
Calcium sulfide is the chemical compound with the formula CaS. This white material crystallizes in cubes like rock salt. CaS has been studied as a component in a process that would recycle gypsum, a product of flue-gas desulfurization.
Molar mass：72.143 g/mol
Appearance：white crystals hygroscopic
Melting point：2,525 °C (4,577 °F; 2,798 K)
Solubility in water：hydrolyses
Solubility：insoluble in alcohol
reacts with acid
Refractive index (nD)：2.137
Calcium sulfide is used in phosphors, lubricant additives and luminous paints. It reacts with elemental sulfur to give a lime-sulfur. Further, it is used in ore dressing and flotation agent. In addition to this, it is used as a depilatory in the tanning industry and in cosmetics.
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