| Identification | |
| Name: | Sulfuric acid, calciumsalt (1:1) |
| Synonyms: | Calciumsulfate (6CI);A 30 (sulfate);Basic calcium sulfate;CA 5(sulfate);CAS 20;CAS 20-4;Calcium sulfate (1:1);Calcium sulfate (CaSO4);Calmatrix;Capset;CoCoat P 80HB;Crysalba;D 1;D 1(sulfate);D 101A;D 101A (sulfate);Denka Sigma 1000;Drierite;Franklin FiberH 45;Oparex 10;Osteoset;Raddichem 27;SSS-A;Sulfuric acid calcium salt;Sulfuric acid calcium(2+) salt (1:1); |
| CAS: | 7778-18-9 |
| EINECS: | 231-900-3 |
| Molecular Formula: | CaSO4 |
| Molecular Weight: | 290.3 |
| InChI: | InChI=1/Ca.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2 |
| Molecular Structure: |  |
| Properties | |
| Transport: | UN 3077 9/PG 3 |
| Density: | 2.960 |
| Stability: | Stable. Incompatible with aluminium, strong acids. |
| Water Solubility: | Slight, 0.24g in 100g of water |
| Solubility: | Slight, 0.24g in 100g of water |
| Appearance: | white powder or granules |
| Specification: |
?In the natural state, unrefined Calcium sulfate (CAS NO.7778-18-9) is a translucent, crystalline white rock. The hemihydrate (CaSO4.~0.5H2O) is better known as plaster of Paris, while the dihydrate (CaSO4.2H2O) occurs naturally as gypsum.?The main sources of?Calcium sulfate (CAS NO.7778-18-9) are naturally occurring gypsum and anhydrite which occur at many locations worldwide as evaporites. These may be extracted by open-cast quarrying or by deep mining. World production of natural gypsum is around 127 million tonnes per annum. |
| Storage Temperature: | Store at RT. |
| Sensitive: | Moisture Sensitive |
| 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]. |
| Safety Data | |
| Hazard Symbols |
T:有毒物质‖N
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