White powder or pearl. It is easily soluble in water and aqueous solution is acidic to litmus. It's slightly soluble in ethanol and glycerin.
Specification:The Item | Unit | The Standard(Powder) | The Standard(Pearl) |
Appearance | -- | white crystalline powder | white pearl |
Assay | % | 99.0Min. | 98.0Min. |
Zn | % | 21Min. | 21.5Min. |
Pb | % | 0.002Max. | 0.002Max. |
As | % | 0.0005Max. | 0.0005Max. |
Cd | % | 0.01Max. | 0.01Max. |
Zinc sulphate is mainly used as raw material for the production of lithopone and zinc salts. It is also used in synthetic fiber industry, zinc plating, pesticides, flotation, fungicide and water purification. In agriculture, it is mainly used in feed additive and trace element fertilizer, etc.