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1.Electroplating grade
CuO | 98.5%min |
Zn
| 200ppm max |
Fe | 100ppm max |
Pb | 60ppm max |
Cl | 100ppm max |
Acid-insoluble | 0.01% max |
2.Electronic Grade
CuO | 98%min |
Hydrochloric acid insoluble | 0.2%max |
Water soluble matter | 0.1%max |
Cl | 0.2%max |
So | 0.2%max |
Cd | 5ppm max |
Pb | 100ppm max |
Hg | 2ppm max |
Cr VI | 2ppm max |
3,Industrial Grade
CuO | 98%min |
Water soluble matter | 0.1% max |
So | 0.2% max |
Hydrochloric acid insoluble | 0.2%max |
Cl | 0.2%max |
Good quality of Copper Oxide Black 98% min tech grade