Calcium sulfide (CaS)-Powder

Characteristic

 

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.




Chemical formula：CaS

Molar mass：72.143 g/mol

Appearance：white crystals hygroscopic

Density：2.59 g/cm3

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

 


Application

 

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.