Calcium Sulfate Dihydrate
Gypsum
- CAS
- 10101-41-4
- EC
- 600-148-1
- Food Code
- E516
- Sectors
- Building & Construction, Food & Nutrition, Pharma & Healthcare
Calcium Sulfate Dihydrate (CAS 10101-41-4), also known as gypsum, is the dihydrate form of calcium sulfate, a white crystalline powder of moderate water solubility used in plaster, cement, ceramics, as a tofu coagulant and as a tablet filler and stabilizer.
Typical Properties
| Molecular formula | Ca.H2O4S.2H2O |
|---|---|
| Molecular weight | 172.17 g/mol |
| Appearance | white powder |
| Form | powder |
| Color | White |
| Odor | at 100.00?%. odorless |
| Melting point | 128°C -1.5H₂O |
| Boiling point | 163°C -2H₂O |
| Density | 0.545 g/cm³ (solid) |
| Water solubility | 2 g/L (20 °C) |
| Flash point | 163°C-2H₂O |
| pH | 7.0 (50g/l, H2O, 20°C)(slurry) |
| GHS signal word | Warning · Irritant / harmful |
| HS code | 28332990 |
| Grades available | Food Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
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Calcium Sulfate Dihydrate
Applications
Used in plaster, cement, ceramics, and as a coagulant in tofu production. In pharmaceuticals, it serves as a filler and stabilizer in tablets.
Safety & Risks
Non-toxic and stable. Avoid moisture exposure that may alter physical properties.
Packaging
Delivered in 25 kg bags or 1,000 kg bulk sacks. Store dry and sealed.