Calcium sulfate hemihydrate is a calcium salt and a hydrate.
Irritant
⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).
Calcium sulfate hemihydrate is a calcium salt and a hydrate.
| Physical Description | Plaster of paris appears as white or yellowish, finely divided, odorless powder consisting mostly or entirely of calcium sulfate hemihydrate, CaSO4*1/2H2O. Forms a paste when it is mixed with water… |
| Melting Point | 325 °F (Loses H2O) (NIOSH, 2024) |
| Density | 2.5 (NIOSH, 2024) - Denser than water; will sink |
| Solubility | 0.3 % at 77 °F (NIOSH, 2024) |
| Vapor Pressure | 0 mmHg (approx) (NIOSH, 2024) |
| IUPAC Name | dicalcium;disulfate;hydrate |
| Molecular Formula | Ca2H2O9S2 |
| Molecular Weight | 290.3 g/mol |
| CAS | 10034-76-1 |
| SMILES | O.[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Ca+2].[Ca+2] |
| InChIKey | ZOMBKNNSYQHRCA-UHFFFAOYSA-J |
| Catalog No | KC.310068 |
| Pack sizes | 100gm · 500gm |
⚠️ For information only; not a substitute for the official SDS.