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