Calcium sulfate hemihydrate CAS NO.10034-76-1

White monoclinic crystalls or crystal powder.No smell.Has the water absorbability.128 ℃ lose 1 molecular crystal water, all 163 ℃ water loss.Soluble in acid, sodium thiosulfate and ammonium salt solution, insoluble in 400 water, dissolves in hot water less, extremely slow soluble in glycerin, hardly soluble in ethanol and most organic solvents.Relative density 2.32.Stimulating.Usually contains two crystallization water, in the form of gypsum mine exists in the nature.

1.Used for building: for making gypsum board and Gypsum ceiling, cornice, ceiling circle, other mouldings. 

2.For moulding: Pottery mould, ware moulds. Arts and crafts moulds
3.For decoration: Wall plastering, surface process, Joint Powder, wall putty, etc
4.Used in medicine: plaster of paris bandage, etc
5.Dentistry gypsum powde