Zinc Sulfate Heptahydrate
- CAS
- 7446-20-0
- EC
- 616-097-3
- Sectors
- Agriculture, Animal Nutrition, Water & Wastewater Treatment
Zinc Sulfate Heptahydrate (CAS 7446-20-0) is a water-soluble zinc salt that appears as a white crystalline solid and acts as a zinc source for agriculture, animal feed and industrial chemistry, with uses in wastewater treatment, electroplating and dye mordants. It dissolves easily in water, providing bioavailable zinc ions.
Typical Properties
| Molecular formula | H2O4S.7H2O.Zn |
|---|---|
| Molecular weight | 287.56 g/mol |
| Form | Solid |
| Color | White |
| Odor | odorless, astringent taste |
| Melting point | 100 °C |
| Density | 1.97 g/cm³ |
| Water solubility | 960 g/L |
| pH | 4-6 (50g/l, H2O, 20°C) |
| GHS signal word | Danger · Corrosive, Irritant / harmful, Health hazard, Environmental hazard |
| HS code | 28332600 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Zinc Sulfate Heptahydrate
Applications
Used in fertilizers, animal feeds, and pharmaceuticals to prevent zinc deficiency. Industrially, applied in electroplating, dye mordants, and wastewater treatment.
Safety & Risks
Harmful if swallowed; toxic to aquatic life. Avoid dust formation and direct skin contact. Handle in ventilated areas.
Packaging
Supplied in 25–50 kg polyethylene-lined bags. Store cool, dry, and away from acids or bases.