Zinc sulfate monohydrate (Ⅰ);
Zinc sulfate heptahydrate (Ⅱ)
Other name：Zinc vitriol, zinc vitriol
CAS No.: 7446-19-7(Ⅰ); 7446-20-0(Ⅱ)
EINECS No.:231-793-3
UN No.: 3077
HS No.: 2833293000
Molecular Formula: ZnSO4.H2O (Ⅰ); ZnSO4.7H2O (Ⅱ)
Molecular weight：179.47 (Ⅰ); 287.54 (Ⅱ)
1. Appearance: White or microstrip yellow powder (Ⅰ); Colorless or microstrip yellow crystal (Ⅱ)
2. Specifications:
Quality standards：HG 3277-2000
| Index Item |
Ⅰ |
Ⅱ |
||||
| Superior product | First grade | Qualified product | Superior product |
First grade |
Qualified product | |
| Zinc（Zn），wt%≥ | 35.3 | 33.8 | 32.3 | 22.0 | 21.0 | 20.0 |
| Acidity acid (as H2SO4) ,wt%≤ | 0.1 | 0.2 | 0.3 | 0.1 | 0.2 | 0.3 |
| Cadmium（Cd）, wt%≤ | 0.002 | 0.003 | 0.005 | 0.002 | 0.002 | 0.003 |
| Lead (Pb) , wt%≤ | 0.002 | 0.010 | 0.015 | 0.002 | 0.005 | 0.010 |
| Arsenic(As) , wt%≤ | 0.002 | 0.005 | 0.010 | 0.002 | 0.005 | 0.007 |
4. Uses: Used as trace element fertilizer in agriculture, can be used as basal, foliar fertilizer, etc.
5. Storage: Stored in cool and ventilated, avoid light place.
Welcome to contact us.