Characteristic

Calcium sulfate (or calcium sulphate) is the inorganic compound with the formula CaSO₄ and related hydrates. In the form of anhydrous, it is used as a desiccant. One particular hydrate is better known as plaster of Paris, and another occurs naturally as the mineral gypsum.

Chemical formula:CaSO₄

Molar mass :136.14 g/mol 

Appearance: white solid

Odor: odorless

Density: 2.96 g/cm³

Melting point :1,460 °C (2,660 °F; 1,730 K) 

Solubility in water:0.21g/100ml at 20 °C 

Solubility product (Ksp):4.93 × 10−5 mol2L−2

Acidity (pKa): 10.4 

Magnetic susceptibility (χ):-49.7·10−6 cm³/mol

Crystal structure:orthorhombic

Application

Calcium sulfate, anhydrous is used as adhesives and sealant chemical, Fillers, Fuels and fuel additives, Intermediates, Process regulators, Agricultural Products, Building/Construction Materials.