sulfate

The sulfate ion is a polyatomic anion with the empirical formula SO2− 4 and a molecular mass of 96.06 daltons (96.06 g/mol); it consists of a central sulfur atom surrounded by four equivalent oxygen atoms in a tetrahedral arrangement. Gypsum is a very soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O.

Authorization Path: 2.5.7.4.30.0