I-Ferrous sulfate
Iinkcukacha
| Into | Umgangatho |
| Fe2+ | ≥17.6 % |
| Izinto ezinganyibilikiyo | ≤0.1 % |
| Hg | ≤0.00001 % |
| Cr | ≤0.0005 % |
| As | ≤0.002 % |
| Pb | ≤0.002 % |
Bhala umyalezo wakho apha kwaye uwuthumele kuthi
Iinkcukacha
| Into | Umgangatho |
| Fe2+ | ≥17.6 % |
| Izinto ezinganyibilikiyo | ≤0.1 % |
| Hg | ≤0.00001 % |
| Cr | ≤0.0005 % |
| As | ≤0.002 % |
| Pb | ≤0.002 % |