HEATING CUPRIC SULFATE PENTAHYDRATE SOLID<br />
CuSO4*5H2O (Copper II Sulfate)<br />
Heated CuSO4<br />
5H2O loses 2H2O at 30 deg C., 2 more H2O at 110 deg C. and becomes anhydrous by 250 deg C. changing color from blue to white.