Zinc sulfate
Zinc sulfate is an essential inorganic compound widely used in various industries including agriculture, pharmaceuticals, and nutrition. Our premium quality Zinc sulfate meets strict industry standards and is available in multiple grades to suit different applications.
Technical Specifications
Key Parameters:
- Chemical Formula: ZnSO₄·xH₂O
- Appearance: White crystalline powder
- Purity: ≥ 99% (Industrial Grade)
- Purity: ≥ 99.5% (Food/Pharma Grade)
- Solubility: Highly soluble in water
- pH Value: 4.0-5.5 (10% solution)
- Bulk Density: 1.2-1.4 g/cm³
- Melting Point: 680°C (decomposes)
Available Packaging Options:
| Package Type | Weight | MOQ |
|---|---|---|
| Plastic bags | 25 kg | 1 ton |
| Fiber drums | 50 kg | 500 kg |
| Super sacks | 1000 kg | 10 tons |
| Custom packaging | As per requirement | Negotiable |
Zinc Sulfate Grade Comparison
| Parameter | Industrial Grade | Food Grade | Pharma Grade |
|---|---|---|---|
| ZnSO₄·7H₂O Content | ≥99% | ≥99.5% | ≥99.9% |
| Heavy Metals (as Pb) | ≤20 ppm | ≤10 ppm | ≤5 ppm |
| As Content | ≤5 ppm | ≤3 ppm | ≤1 ppm |
| Pb Content | ≤10 ppm | ≤5 ppm | ≤2 ppm |
| Cd Content | ≤5 ppm | ≤2 ppm | ≤1 ppm |
Zinc Sulfate FAQ
Q: What are the main applications of Zinc sulfate?
A: Zinc sulfate has diverse applications across multiple industries. In agriculture, it serves as an important micronutrient fertilizer to correct zinc deficiencies in crops. The pharmaceutical industry uses high-purity Zinc sulfate in supplements and medicines. It's also crucial in animal nutrition, water treatment processes, and as a mordant in dyeing textiles. Additionally, Zinc sulfate finds applications in electrolyte preparation for zinc plating and as a laboratory reagent.
Q: What safety precautions should be taken when handling Zinc sulfate?
A: When handling Zinc sulfate, always wear appropriate PPE including gloves, safety goggles, and dust masks to prevent contact with skin or eyes. Avoid creating dust during handling and ensure adequate ventilation in working areas. In case of skin contact, wash immediately with plenty of water. For eye contact, rinse cautiously with water for several minutes. Store Zinc sulfate in a cool, dry place away from incompatible materials such as strong bases. Follow all local regulations for chemical storage and disposal.
Q: How does Zinc sulfate monohydrate differ from the heptahydrate form?
A: The primary difference between Zinc sulfate monohydrate (ZnSO₄·H₂O) and heptahydrate (ZnSO₄·7H₂O) lies in their water content and physical properties. The heptahydrate form contains more water molecules, making it more soluble in water but also more prone to caking. Monohydrate has higher zinc content (about 36% vs 22% in heptahydrate) and better storage stability. Heptahydrate tends to effloresce (lose water) in dry air, while monohydrate is more stable under typical storage conditions. The choice between forms depends on specific application requirements.
Storage & Handling Guidelines
- Store in original, tightly closed containers in a cool, dry, well-ventilated area
- Keep away from moisture and incompatible materials (strong bases, carbonates)
- Maintain storage temperature below 30°C (86°F)
- Protect from physical damage and direct sunlight
- Follow FIFO (first in, first out) inventory management
- For bulk storage, use moisture-resistant containers with proper labeling
Regulatory Compliance
Our Zinc sulfate products comply with:
- USP/NF, FCC, and BP pharmacopeia standards
- REACH and CLP regulations (EU)
- FDA 21 CFR for food-grade products
- ISO 9001:2015 quality management system
More Zinc Sulfate Questions
Q: What is the shelf life of Zinc sulfate?
A: When stored properly under recommended conditions, Zinc sulfate typically has a shelf life of 24-36 months. The heptahydrate form may have a slightly shorter shelf life due to its tendency to lose water molecules over time. For optimal performance, it's recommended to use Zinc sulfate within two years of manufacture. Always check the product's appearance before use - significant caking or discoloration may indicate degradation.