1. Chemical Name: Copper sulphate pentahydrate

2. Molecular Formula : CuSO4·5H2O

3. Molecular Weight: **9.7

4. CAS: ********8

 Copper sulfate is blue crystal granular, soluble in water and diluted acetic acid. copper sulphate,is the chemical compound with the chemical formula CuSO4. This salt exists as a series of compounds that differ in their degree of hydration. The anhydrous form is a pale green or gray-white powder, whereas the pentahydrate (CuSO4·5H2O), the most commonly encountered salt, is bright blue. Copper sulfate exothermically dissolves in water to give the aquo complex [Cu(H2O)6]2+, which has octahedral molecular geometry and is paramagnetic. Other names for copper sulfate are "blue vitriol" and "bluestone".The solution appears as weak acidity. Copper sulfate will be effloresces slowly in dry air, and its surface will become white powder substance.Copper sulfate will lose four crystal water when heated to **0 °C, and will be changed into white Copper sulfate anhydrous which is easy to absorb water when the temperature is higher than **0°C.