calcium sulfate
Also known as CaSO4, calcium sulphate, calcium sulfate anhydrous, anhydrous calcium sulfate, anhydrous gypsum, anhydrous sulfate of lime, calcium salt of sulfuric acid
laboratory and industrial chemical
Chemical data
- Formula
- CaO4S
- Molecular weight
- 136.14 g/mol
- IUPAC name
- calcium sulfate
- SMILES
- [O-]S(=O)(=O)[O-].[Ca+2]
- InChIKey
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L
- Polar surface area
- 88.6 Ų
- H-bond donors
- 0
- H-bond acceptors
- 4
- Formal charge
- 0
via PubChem
Research
14,093 papersvia PubMed
~10 min read
Article
Calcium sulfate (or calcium sulphate) is an inorganic salt with the chemical formula CaSO 4. It occurs in several hydrated forms; the anhydrous state (known as anhydrite) is a white crystalline solid often found in evaporite deposits. Its dihydrate form is the mineral gypsum, which may be dehydrated to produce bassanite, the hemihydrate state. Gypsum occurs in nature as crystals (selenite) or fibrous masses (satin spar), typically colorless to white, though impurities can impart other hues. All forms of calcium sulfate are sparingly soluble in water and cause permanent hardness when dissolved therein.
Hydration states
Gallery (7)
Connections
Categories
Calcium compoundsChemical articles with multiple CAS registry numbersChemical articles with multiple ChEBIsChemical articles with multiple compound IDsChemicals using indexlabelsDesiccantsECHA InfoCard ID from WikidataE-number additivesE number from WikidataFood additivesPyrotechnic colorantsSulfates