zinc sulfate,zinc sulfate heptahydrate,zinc sulfate monohydrate
Name:Zinc sulfate ZnSO4·7H2O is white crystal with convergence, and tends to effloresce in dry air, and is soluble in water. It is mainly used to produce the raw materials of lithopone and other zinc salts, and is also very important to produce artificial fiber. It can also be used as conservative agent of dye, wood and leather, clarificant of bone glue, emetic and fangicide. It can also be applied in galvanization and floatation. In agriculture, it can be used as microelement fertilizer and in animal husbandry. It can be used as addictives of forage. The main products are as follows:
zinc sulfate
Operative norm:HG/T 2326-92
| Item | Index | |||||
| I type monohydrated zinc sulfate | II type(Zinc vitriol | |||||
| High-class | First-class | Quality | High-class | First-class | Quality | |
| calculating Zn Main content calculating ZnSO4·H2O ≥% calculating ZnSO4·7H2O |
35.7 98.0 |
35.34 97.0 |
34.61 95.0 |
22.51 99.0 |
22.06 97.0 |
20.92 92.0 |
| Insoluable material content ≤% | 0.020 | 0.050 | 0.10 | 0.020 | 0.050 | 0.10 |
| PH value 50g /L ≥% | 4.0 | 4.0 | 3.0 | 3.0 | ||
| chloride calculating Cl content ≤% | 0.20 | 0.60 | 0.20 | 0.60 | ||
| Pb content ≤% | 0.002 | 0.007 | 0.010 | 0.002 | 0.010 | 0.010 |
| Fe content ≤% | 0.008 | 0.020 | 0.060 | 0.005 | 0.020 | 0.060 |
| Mn content ≤% | 0.01 | 0.03 | 0.05 | 0.01 | 0.10 | |
| Cd content ≤% | 0.002 | 0.007 | 0.010 | 0.002 | 0.010 | |
| Cu content ≤% | 0.001 | 0.002 | ||||