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| elements | value | elements | value |
| copper (min %age) | 99.99% | silica (si/ppm) | 0.3 |
| iron (fe/ppm) | 2 | cobalt (co/ppm) | 0.2 |
| sulphur (s/ppm) | 4 | arsenic (as/ppm) | 0.1 |
| oxygen (o2/ppm) | nil | bismuth (bi/ppm) | 0.1 |
| argent (ag/ppm) | 10 | manganese (mn/ppm) | 0.1 |
| lead (pb/ppm) | 0.2 | teleurium (te/ppm) | 0.05 |
| nickel (ni/ppm) | 0.2 | aluminium (al/ppm) | 0.5 |
| selenium (se/ppm) | 0.3 | magnesium (mg/ppm) | 0.4 |
| antimony (sb/ppm) | 0.1 | | |
Copper Cathode
