Formula: CoO.Co2O3
Status: Black powder,insoluble in water,soluble in hot inorganic acid.
Usage: Mainly applies to magnetic material, kinescope, hardiness alloy, enamel, coloring and ceramics pigment.
Packing: 25/50kgs fibre board drum / iron drum.
| Contents % |
Grade A % |
Grade B % |
| Co ≥ |
73-74 |
≥72 |
| Ni ≤ |
0.02 |
0.10 |
| Fe ≤ |
0.10 |
0.10 |
| Cu ≤ |
0.02 |
0.05 |
| Mn ≤ |
0.02 |
0.05 |
| Zn ≤ |
0.02 |
0.05 |
| Ca ≤ |
0.05 |
0.05 |
| Mg ≤ |
0.05 |
0.05 |
| Na ≤ |
0.30 |
0.30 |
| Pb ≤ |
0.005 |
0.005 |
| Cd ≤ |
0.002 |
0.002 |
| As ≤ |
0.001 |
0.001 |
| Sieve (mesh) |
-325 |
-325 | |