Brand Name: lijin
Model Number: 98
Place of Origin: china
Copper sulfate pentahydrate, commonly known as blue alum, cholelum, or copper alum, the chemical equation is CuSO4-5H2O, is a blue crystal. Anhydrous copper sulfate is very stable at room temperature and pressure, no deliquescence, will gradually weathering in dry air, lose 1 molecule of crystal water when heated to 45 °C, lose 4 molecules of crystal water at 110 °C, lose all crystal water at 150 °C to become anhydrous. Anhydrous substances are also easy to absorb water and convert to copper sulfate pentahydrate.