| CAS No.: | 7446-20-0 |
|---|---|
| Formula: | Znso4.7H2O |
| Certification: | CCIC, CIQ, RoHS, ISO |
| Purity: | ≥99% |
| Type: | Zinc Sulfate |
| Appearance: | White Crystalline Powder |
| Samples: |
|---|
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Audited Supplier Chemical Name: Zinc sulfate
Molecular Formula: ZnSO4·7H2O
Molecular Weight: 287.54 (Heptahydrate)
CAS: 7446-20-0 (7H2O)
Character: Colorless or white crystalline powder, odorless. Efflorescence in air. Acid hydrometer is 1.957 (25/4) to litmus. Melting point is 100. Soluble in water and glycerol, insoluble in ethanol. Light toxicity, loses crystal water at 280.
Usage: Food additives, animal feed, printing and dyeing, timber preservative. Analytical reagent.
Packing: Packed in polythene bag as the inner layer, and a compound plastic woven bag as the outer layer. Net weight of each bag is 25kg.
Storage and Transport: Store in a dry and ventilative warehouse; keep away from water and moisture during transport. Unload with care to avoid bag damage. Store separately from poisonous substances.
Company: Nanjing Jiayi Sunway Chemical Co., Ltd.
| Index | Specification | GB25579-2010 | FCC,1996 | ||
| content w/% | ZnSO4.H2O | Content | ZnSO4.H2O | 99.0 | 99.0 |
| ZnSO4.7H2O | ZnSO4.7H2O | 99.0 | 99.0 | ||
| (As), mg/kg ≤ | As | 0.0003 | -- | ||
| alkali metal w/% ≤ | Alkali metal | 0.50 | 0.5 | ||
| acidity | PH | pass test | normal | ||
| (Se), mg/kg ≤ | Se | 0.003 | 0.003 | ||
| (Hg), mg/kg ≤ | Hg | 0.0001 | 0.0005 | ||
| (Pb), mg/kg ≤ | Pb | 0.0004 | 0.001 | ||
| (Cd), mg/kg ≤ | Cd | 0.0002 | 0.0005 | ||
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