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Name:
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H.S Code:
Zinc Sulfate Heptahydrate
ZnSO₄·7H₂O
7446-20-0
28332990
Zinc sulfate heptahydrate (ZnSO₄·7H₂O) is a hydrated form of zinc sulfate, commonly encountered as a colorless, crystalline solid. It is highly soluble in water and plays a vital role in various industrial and agricultural applications. In agriculture, it serves as a micronutrient fertilizer to promote plant growth and improve crop yield. Additionally, it is used in pharmaceuticals, food additives, and as a mordant in dyeing processes. Its diverse applications highlight its importance in both environmental and economic contexts.
Items | Class 1 | Class 2 | Class 3 |
(Zn) content, % | 22.51 | 22.06 | 20.92 |
(Zn SO₄·7H₂O) content, % ≥ | 99 | 97 | 92 |
Insoluble content, % ≤ | 0.02 | 0.05 | 0.1 |
pH ≥ | 3 | 3 | — |
(Pb) content, % ≤ | 0.001 | 0.01 | 0.01 |
(Fe) content, % ≤ | 0.003 | 0.02 | 0.06 |
(Mn) content, % ≤ | 0.005 | 0.1 | — |
(Cd) content, % ≤ | 0.001 | 0.01 | — |
Zinc sulfate heptahydrate is available in 25kg woven bags lined with pp bags