Statements (29)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:chemical_compound
|
| gptkbp:appearance |
white solid
|
| gptkbp:CASNumber |
7778-18-9
|
| gptkbp:chemicalFormula |
CaSO4
|
| gptkbp:containsElement |
gptkb:sulfur
oxygen calcium |
| gptkbp:crystalSystem |
orthorhombic
|
| gptkbp:density |
2.96 g/cm³
|
| gptkbp:foundIn |
sedimentary rocks
|
| https://www.w3.org/2000/01/rdf-schema#label |
calcium sulfate
|
| gptkbp:hydratedForms |
gptkb:anhydrite
gptkb:bassanite gypsum |
| gptkbp:IUPACName |
gptkb:calcium_sulfate
|
| gptkbp:meltingPoint |
1,460 °C
|
| gptkbp:molecularWeight |
136.14 g/mol
|
| gptkbp:number |
gptkb:E516
|
| gptkbp:pH |
neutral
|
| gptkbp:refractiveIndex |
1.52
|
| gptkbp:solubility |
0.21 g/100 mL (20 °C)
|
| gptkbp:thermalDecomposition |
forms calcium oxide and sulfur trioxide
|
| gptkbp:toxicity |
low
|
| gptkbp:uses |
gptkb:food
gptkb:plaster_of_Paris gypsum soil conditioner |
| gptkbp:bfsParent |
gptkb:Calcium
|
| gptkbp:bfsLayer |
4
|