Basic Information
Chemical Name: Copper Sulfate; also called blue vitriol
Chemical Formula: CuSO4·5H2O Molecular Weight： 249.68
Appearance: Blue crystal or powder.
Uses
COSMO’s high pure grade copper sulfate can be directly used without any pre-treatment due to its low content of metallic ions and organic impurities. It can be applied to the interconnection and encapsulation of high-end PCB components, chemical reagents,
Item | High Purity Grade (Typical Value) | Ultra-Pure Grade (Typical Value) |
CuSO4·5H2O，% | 99．7 | 99．7 |
Cl，mg/kg | 5 | 3 |
Fe，mg/kg | 8 | 2 |
Pb，mg/kg | 2 | 1 |
Zn，mg/kg | 4 | 2 |
Ni，mg/kg | 2 | 1 |
Co，mg/kg | 0.2 | 0.1 |
Ca，mg/kg | 1 | 1 |
As，mg/kg | 0.9 | 0.5 |
Cr，mg/kg | 0.6 | 0.3 |
Cd，mg/kg | 0.05 | 0.03 |
Water Insoluble，mg/kg | 3 | 1 |
pH5% solution，20°C | 3.8 | 3.8 |
