Zinc Sulphate Heptahydrate
Brand: Pinsen
Product Origin: Shandong, China
HS Code: 2833299090
CAS: 7446-20-0
Grade: Agricultural Grade, Industrial Grade, Feed Grade
Packing: 25kg, 50kg, 1250kg
✓ High purity crystal, readily soluble in water, fast dissolution
✓ Highly bioavailable zinc for crops; prevents small-leaf & rosette disease
✓ Promotes flower bud formation and increases fruit setting rate
✓ Uniform crystal size, low dust, good free-flowing property
✓ Easy to blend, applicable for foliar spray and drip irrigation
✓ Low impurities, ideal raw material for water-soluble /BB/ compound fertilizer & feed premix
✓ Stable & consistent batch quality for premix and compound feed production
Product Description
Zinc Sulfate Heptahydrate (ZnSO₄·7H₂O, Molecular Weight: 287.56, CAS No.: 7446-20-0) is a widely used industrial and agricultural inorganic zinc salt. It appears as white or pale orange crystalline granules or powder, with a relative density of 1.97 and a melting point of 100°C. The product dissolves rapidly in water, exhibits stable chemical performance, and delivers outstanding cost-efficiency across multiple application scenarios.
Specification
| Item | Specification |
| Chemical Formula | ZnSO₄·7H₂O |
| CAS Number | 7446-20-0 |
| Molecular Weight | 287.56 g/mol |
| Appearance | White or pale orange crystal |
| Purity | ≥ 99.0% |
| Total Zinc (Zn) | ≥ 21.3% |
| pH Value (5% Aqueous Solution) | 4.0 – 6.0 |
| Water Insoluble Matter | ≤ 0.05% |
| Lead (Pb) | ≤ 0.002% |
| Arsenic (As) | ≤ 0.002% |
Application
-
Agricultural Sector:
The most widely utilized zinc fertilizer, ideal for base fertilization, topdressing, seed soaking, and foliar spray to correct zinc deficiency and improve crop yield and quality. -
Industrial Manufacturing:
Serves as a raw material for lithopone pigments and specialty zinc salts, a mordant in textile printing and dyeing, a wood preservative, and a catalyst for synthetic fiber processing. -
Wastewater Treatment:
Acts as an effective flocculant and heavy metal precipitant in industrial wastewater treatment to remove suspended matter and toxic ions. -
Feed Industry:
Added as an economical, bioavailable trace mineral supplement in animal feeds to support bone development, enzyme activity, and immunity in livestock and poultry.
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