Assertion: gypsum's solubility | /r/HasProperty | 0.2 g/100
Facets:
Source sentences:
text: For example, the solubility of α-form calcium sulfate hemihydrate, CaSO 4 ⋅ 0.5H 2 O, and calcium sulfate dihydrate, CaSO 4 ⋅ 2H 2 O, is 0.92 g/100 ml and 0.2 g/100 ml at 20 °C as shown in eqns [IV] and [V], respectively.