Calcium sulfate is an inorganic calcium salt and a calcium salt.
⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).
Calcium sulfate is an inorganic calcium salt and a calcium salt.
| Physical Description | Calcium sulfate appears as odorless, white powder or colorless, crystalline solid. Crystals sometimes have a blue, gray or reddish tinge or can be brick red. Density: 2.96 g cm-3. |
| Color/Form | NATURAL ANHYDRITE CRYSTALS ARE COLORLESS, RHOMBIC OR MONOCLINIC |
| Odor | PURE ANHYDROUS CALCIUM SULFATE IS ODORLESS |
| Melting Point | 2840 °F (Decomposes) (NIOSH, 2024) |
| Boiling Point | Decomposes (NIOSH, 2024) |
| Density | 2.96 (NIOSH, 2024) - Denser than water; will sink |
| Solubility | 0.3 % (NIOSH, 2024) |
| Vapor Pressure | 0 mmHg (approx) (NIOSH, 2024) |
| Refractive Index | INDEX OF REFRACTION: 1.521, 1.523, 1.530; LOSES 1/2 H2O AT 128 °C & 2 H2O AT 163 °C /DIHYDRATE/ |
| IUPAC Name | calcium sulfate |
| Molecular Formula | CaO4S |
| Molecular Weight | 136.14 g/mol |
| CAS | 7778-18-9 |
| SMILES | [O-]S(=O)(=O)[O-].[Ca+2] |
| InChIKey | OSGAYBCDTDRGGQ-UHFFFAOYSA-L |
| Catalog No | KC.310066 |
| Pack sizes | 500gm |
⚠️ For information only; not a substitute for the official SDS.