Tianjin Tiankai Chemical Industries Import and Export Corporation
Main products:Caustic Soda,Calcium Carbide
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  • Company Name : Tianjin Tiankai Chemical Industries Import and Export Corporation
  • Tel : 86-022-66250391,66250389
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Calcium sulphate

Calcium sulphate
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Related Categories:Sulphate
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Calcium sulfate/calcium sulphate white powder strict quality control and best quality

Calcium sulfate is a common laboratory and industrial chemical. In the form of γ-anhydrite, it is used as a desiccant. It is also used as a coagulant in products like tofu.

In the natural state, unrefined calcium sulfate is a translucent, crystalline white rock. When sold as a color-indicating variant under the name Drierite, it appears blue or pink due to impregnation with cobalt chloride, which functions as a moisture indicator.

The hemihydrate is better known as plaster of Paris, while the dihydrateoccurs naturally as gypsum.

The anhydrous form occurs naturally as β-anhydrite. Depending on the method of calcination of calcium sulfate dihydrate, specific hemihydrates are sometimes distinguished: alpha-hemihydrate and beta-hemihydrate.They appear to differ only in crystal size. Alpha-hemihydrate crystals are more prismatic than beta-hemihydrate crystals and, when mixed with water, form a much stronger and harder superstructure.

Calcium sulphate



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