NILE CHEMICALS
NILE
CHEMICALS
| ZINC SULPHATE DRIED (monohydrate) | |
| ZnSO4.H2O M.W. 179.45 | |
| Minimum assay (complexometric) | 99 - 100.5% |
| pH ( 5% water ) | 4.0 - 5.2' |
| Max. Limits of Impurities : | |
| Free acid | passes test |
| Chloride ( Cl ) | 0.002% |
| Arsenic ( As ) | 0.0005% |
| Lead ( Pb ) | 0.002% |
| Iron ( Fe ) | 0.003% |
| Alkalies and earth alkalines | 0.7% |
| Loss on drying ( 105OC ) | 1.0% |