| Identification | |
| Name: | Calcium sulfate dihydrate |
| Synonyms: | Sulfuricacid, calcium salt (1:1), dihydrate (8CI,9CI);Annaline;Calcigen;Calciumsulfate (1:1) dihydrate;Calcium sulfate (CaSO4) dihydrate;Calcium sulfatedihydrate;Calcium sulfate dihydrate (CaSO4.2H2O);Compactrol;Gypsumdihydrate;Mineral White; |
| CAS: | 10101-41-4 |
| EINECS: | 231-900-3 |
| Molecular Formula: | H4CaO6S |
| Molecular Weight: | 172.17 |
| InChI: | InChI=1/Ca.H2O4S.2H2O/c;1-5(2,3)4;;/h;(H2,1,2,3,4);2*1H2/q+2;;;/p-2 |
| Molecular Structure: |  |
| Properties | |
| Density: | 2.32 |
| Stability: | Stable. Incompatible with aluminium, strong acids. |
| Refractive index: | 1.5248 |
| Solubility: | 2 g/L (20 oC) in water |
| Appearance: | white powder |
| HS Code: | 28332990 |
| Storage Temperature: | Store at RT. |
| Sensitive: | Hygroscopic |
| Color: | NATURAL ANHYDRITE CRYSTALS ARE COLORLESS, RHOMBIC OR MONOCLINIC NATURAL ANHYDRITE CRYSTALS ARE ORTHORHOMBIC, COLOR VARIES (WHITE WITH BLUE, GRAY OR REDDISH TINGE, OR BRICK RED) INSOL ANHYDRITE HAS SAME CRYSTAL STRUCTURE AS MINERAL ANHYDRITE SOL ANHYDRITE IS OBTAINED IN GRANULAR OR POWDER FORM SOL ANHYDRITE CRYSTALS ARE COLORLESS, HEXAGONAL OR TRICLINIC PURE ANHYDROUS CALCIUM SULFATE EXISTS IN FORM OF WHITE POWDER OR CRYSTALS White powder or colorless, crystalline solid [Note: May have blue, gray, or reddish tinge]. |
| Usage: | Used to make portland cement, plaster of paris and artificial marble; used in agriculture as a soil conditioner; used as a white pigment, filler or glaze in paints, enamels, pharmaceuticals, paper, insecticide dusts, yeast manufacture and polishing powders; in manufacture of sulfuric acid, calcium carbide and ammonium sulfate. |
| Safety Data | |
| Hazard Symbols |
Xn: Harmful
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