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Zinc Sulphate Heptahydrate
| Synonyms |
Zinc Sulphate Heptahydrate |
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| Formula |
ZnSO4 7H2O |
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| CAS No. |
7446-20-0 |
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| EINECS No. |
231-793-3 |
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| Appearance |
White crystals, soluble in water, slightly soluble in alcohol |
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| Typical Analysis |
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| Assay |
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| As zinc (Zn) |
22% Min |
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| As Zinc Sulphate Heptahydrate |
98% Min |
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| Arsenic (As) |
10ppm Max (Gutzeit Method) |
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| Lead (Pb) |
30ppm Max (Atomic Absorption Spectrometric Method) |
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| Cadmium (Cd) |
50ppm Max (Atomic Absorption Spectrometric Method) |
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| Iron (Fe) |
300ppm Max (Atomic Absorption Spectrometric Method) |
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| Mercury (Hg) |
2ppm Max (Atomic Absorption Spectrometric Method) |
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| Chlorides (Cl) |
0.2% Max |
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| Water Insolubles |
0.05% Max |
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| Packaging |
25kg bags |
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