Copper (II) sulphate anhydrous is a chemical compound. Its chemical formula is CuSO4. It contains copper in its +2 oxidation state.It is whitish in anhydrous form.
Anhydrous form of copper sulfate occurs as mineral hydrocyanite. It exhibits a rhombic crystalline morphology. It decomposes to its oxide at temperatures above 600oC. Hydrate of CuSO4 is prepared by the addition of dilute sulfuric acid on copper (II) oxide or copper (II) carbonate, blue triclinic crystals of pentahydrate are formed upon crystallization.