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Calcium Sulphate
Calcium sulphate is an inorganic white solid with the formula CaSO4. It occurs naturally as a mineral and is also produced synthetically, often as a by-product (e.g. from desulphurisation). The compound exists in three levels of hydration: anhydrous (as mineral anhydrite), dihydrate (gypsum or as mineral selenite) and hemihydrate (Bassanite or plaster of Paris).All forms are poorly soluble in water and cause permanent hardness in water.
Characteristics
| Molar Weight | 172.17 g/mol (dihydrate) |
|---|---|
| Melting Point | 1,460°C (anhydrous) |
| Boiling Point | |
| Flash Point | non flammable |
| Specific Gravity | 2.32 g/cm³ (dihydrate) |
| Particle Size |
Uses and Applications
Key applications
- Food additive
- Oil and Gas
- Agricultural
- Pharmaceuticals
- Animal feed
- Cosmetic products
- Building & Construction products
Industries
- Oil & Gas
- Pharma
- Cosmetics
- Food
- Coatings & Construction
- Animal Nutrition
- Agrobusiness
Synonyms: Gypsum, E516, Plaster of Paris, Anhydrite, Selenite, Alabaster
Chemical Formula: CaSO4
CAS Number: 7778-18-9 (anhydrous), 10034-76-1 (hemihydrate), 10101-41-4 (dihydrate)