|
 |
|
| Sulfates |
|
 |
|
|
|
| Zinc Sulfate |
|
 |
| |
|
| Chemical Name: | Zinc sulfate | | Molecular Formula: | ZnSO4·H2O /ZnSO4·7H2O | | Molecular Weight: | 179.49/287.58 | | CAS: | 7733-02-0 | | Character: | At room temperature, it is colorless or white rhombic crystal or powder, astringent, soluble in water, acidic in aqueous solution, slightly soluble in ethanol and glycerol. Pure zinc sulfate in the air for a long time unchanged yellow, placed in dry air to lose water into a white powder. | | Uses: | Zinc sulfate is mainly used as a raw material for making pigment Litho powder, zinc barium white and other zinc compounds. It is also used as a nutrient for animal zinc deficiency, animal husbandry feed additive, zinc fertilizer for crops (trace element fertilizer), an important material for artificial fiber, electrochemicalbook electrolytic solution for metal zinc production, mordant in textile industry, medical emetics, astringents, fungicides, wood and leather preservatives, etc. It is obtained by the action of zinc or zinc oxide with sulfuric acid or by the extraction and refining of sphalerite after roasting in a reverberatory furnace. | | Packing: | It is packed with plastic bag as inner layer, and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg. | | Storage & Transportation: | It should be stored in a dry and ventilative warehouse, kept away form water and moisture during transport, unloaded with care so as to avoid damage to bags. Furthermore, it should be stored separately from poisonous substances. | | Quality index: | Quality index | GB25579-2010 | | ZnSO4·H2O | ZnSO4·7H2O | Assay
AS（ ZnSO4·H2O），w/% /
AS（ ZnSO4·7H2O），w/% | 99.0～100.5 | 99.0～108.7 | | Acidity | Pass the test | | Alkali and alkaline earth metal salts, w % ≦ | 0.50 | | Cadmium (Cd)/ (mg/kg) ≦ | 2 | | Lead (Pb) (mg/kg) ≦ | 4 | | (Hg) (mgkg) ≦ | 1 | | (Se) (mgkg) ≦ | 30 | | (As) (mgkg) ≦ | 3 |
|
|
|
| |
|
|
|
简体中文