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pd_meltingpoint:1450oC
Purity:99%
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Description |
Calcium sulfate is a grayish-white dense powder that occurs in nature in both an anhydrous form (anhydrite) and hydrated form(gypsum); it is also the byproduct of many chemical reactions. It has many industrial uses;for example, as a source of sulfur and sulfuric acid,in cements, tiles and plaster,as a soil conditioner, in paints, dyes,and polishes, and as a food additive. |
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Uses |
Pharmaceutic aid (tablet and capsule diluent). |
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Preparation |
Calcium Sulfate may be prepared by the addition of a soluble calcium salt to a solution of sodium sulfate: CaCl2＋ Na2SO4→CaSO4＋ 2NaCl The product is generally a dihydrate although other hydrates are also known. The CAS numbers of these materials are: 7778-18-9 (anhydrite); 10034-76-1 (hemihydrate); 10101-41-4 (dihydrate). |
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Industrial uses |
Calcium sulfate (CaSO4?2H2O) is the common blackboard chalk. |
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Who Evaluation |
Evaluation year: 1973 |
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EXPOSURE ROUTES |
inhalation, skin and/or eye contact |
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FIRST AID |
(See procedures) Eye:Irrigate immediately Skin:Soap wash Breathing:Fresh air |
