Character & Purpose: Blue Crystal，Mainly use for medicine, dyeing, agriculture, etc.
Packing: 25kg/1000kg PP woven bag.
Formula: CuSO4.5H2O
Standard:
| Item | Spec. | Typical result |
| CuSO4·5H2O/% | 98.5 Min. | 99.1 |
| ACIDITY(AS H2SO4)/% | 0.10 Max. | 0.03 |
| WATER INSOLUBLE MATTER/% | 0.2 Max. | 0.1 |