zinc sulphate heptahydrate (ZnSO₄·7H₂O)
Zinc sulphate heptahydrate (ZnSO4.7H2O) is a colourless to white crystalline zinc salt containing 21% or 22% zinc by weight, valued for its high water solubility. It is used as a foliar and fertigation micronutrient fertiliser to correct zinc deficiency, and as a feed grade zinc supplement.
High-purity Zinc Sulphate Heptahydrate (21% & 22% Grade) manufacturer. Perfect for agriculture & animal feed. Contact us for bulk export prices!
Product Specifications
Zinc Sulphate Heptahydrate 21%
| Property | Specification |
|---|---|
| Appearance | Colorless to white crystals |
| Zinc (Zn) Content | 21.00 % Min. |
| Sulphur (S) Content | 10.00 % Min. |
| Lead (Pb) Content | 30.00 ppm Max. |
| pH (5% aqueous solution) | 3.5 to 5.0 |
| Solubility | Freely soluble in water |
| Insoluble Matter | 0.50 % Max. |
Zinc Sulphate Heptahydrate 22%
| Property | Specification |
|---|---|
| Appearance | Colorless to white crystals |
| Zinc (Zn) Content | 22.00 % Min. |
| Sulphur (S) Content | 10.50 % Min. |
| Lead (Pb) Content | 30.00 ppm Max. |
| pH (5% aqueous solution) | 3.5 to 5.0 |
| Solubility | Freely soluble in water |
| Insoluble Matter | 0.20 % Max. |
Key benefits of zinc sulphate heptahydrate (ZnSO₄·7H₂O)
- Rapid correction of zinc deficiency
- Promotes healthy root development
- Enhances plant vigour and growth
- Improves photosynthesis efficiency
- Increases crop yield
- Enhances produce quality
- Supplies zinc and sulphur together
- Improves nutrient use efficiency
- Increases tolerance to environmental stress
- Provides long residual effect in soil
- Suitable for a wide range of crops
- Cost-effective micronutrient solution
- Supports balanced plant nutrition in accordance with Liebig's Law of the Minimum, so crop growth is optimised by correcting the most limiting nutrient
Export and supply capability
Chakradhar Chemicals has manufactured zinc sulphate heptahydrate (ZnSO₄·7H₂O) in India since 1990 and exports to buyers across seven regions, including the United States.
Manufacturing capacity
30,000 MTPA installed capacity at our Muzaffarnagar plant, Uttar Pradesh, India. Bulk supply and repeat contract volumes are supported.
Certifications and compliance
Export markets served
We currently export to the United States and supply buyers across Asia, Africa, Europe, North America, South America, Latin America, Middle East.
Industries we supply
- United States: Animal Feed, Fertilizers, Mining
- Latin America: Industrial Applications
Why buyers choose Chakradhar Chemicals
- More than three decades of manufacturing excellence since 1990
- One of India's leading manufacturers of Zinc Sulphate products
- Installed production capacity of 30,000 MTPA
- Consistent product quality with stringent quality control
- ISO certified manufacturing facility and US FDA registration
- Advanced manufacturing technology with modern laboratory facilities
- Reliable global export experience across multiple countries
- Competitive pricing with timely delivery
- Customized packaging and private labeling options
- Strict compliance with international quality standards
- Long-term focus on customer satisfaction and sustainable business relationships
Packaging and Supply
- Standard Packaging: 25 kg and 50 kg HDPE woven bags with PE inner liner
- Jumbo Bags: 1,000 kg to 1,250 kg
- Bulk and Custom Packaging: Customized packaging to customer branding and specifications, including private labeling
- Minimum Order Quantity: Contact our sales team for bulk pricing
- Production Capacity: 30,000 MTPA installed capacity
- Bulk Supply: Bulk and container-load supply for domestic and export orders
- Export Markets: Asia, Africa, Europe, North America, South America, Latin America, Middle East
- Export Lead Time: Confirmed at the time of order, contact our sales team
- Documentation: Certificate of analysis, safety data sheet and technical data sheet supplied with every shipment
- Incoterms: FOB, CIF, CFR and Ex Works, other terms on request