Zinc sulfate CAS No.: 7733-02-0
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Category：Biochemical Materials Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
ZINC SULFATE
CAS No.: 7733-02-0
Molecular Formula: ZnSO₄ (anhydrous) / ZnSO₄·7H₂O (heptahydrate)
Molecular Weight: 161.47 g/mol (anhydrous) | 287.56 g/mol (heptahydrate)
1. SPECIFICATIONS
| Parameter | Standard Value |
|---|---|
| Appearance | White crystalline solid |
| Content (Purity) | ≥99.5% |
| pH (5% aqueous solution) | 4.4–6.0 |
| Water Insoluble Matter | ≤0.01% |
| Chloride (Cl) | ≤0.0005% |
| Total Nitrogen (N) | ≤0.001% |
| Arsenic (As) | ≤0.00005% |
| Manganese (Mn) | ≤0.0003% |
| Iron (Fe) | ≤0.0005% |
| Copper (Cu) | ≤0.001% |
| Cadmium (Cd) | ≤0.0005% |
| Lead (Pb) | ≤0.001% |
| Ammonium Sulfide Precipitate | ≤0.05% |
2. PHYSICAL & CHEMICAL PROPERTIES
- Solubility: Highly soluble in water (96.5 g/100 mL at 20°C).
- Density: 1.97 g/cm³ (anhydrous) | 2.07 g/cm³ (heptahydrate).
- Melting Point: 680°C (anhydrous, decomposes) | 100°C (heptahydrate, loses water).
- Hygroscopicity: Absorbs moisture from air (heptahydrate form).
3. HAZARD & SAFETY (GHS)
| Hazard Code | Risk Statement | Precautionary Measures |
|---|---|---|
| H315 | Causes skin irritation. | Wear gloves/protective clothing. |
| H319 | Causes serious eye irritation. | Use eye protection. |
| H335 | May cause respiratory irritation. | Use in well-ventilated areas. |
NFPA Rating: Health 1 | Flammability 0 | Reactivity 0.
4. STORAGE & HANDLING
- Storage: Cool, dry, ventilated area; avoid sunlight and moisture.
- Packaging: 25 kg/bag, drum, or as per buyer’s request.
- Shelf Life: 24 months if stored properly.
5. APPLICATIONS
- Industrial:
- Mordant in dyeing & printing.
- Wood preservative & paper bleaching agent.
- Chemical:
- Electroplating, electrolysis, zinc salt production.
- Agricultural:
- Fertilizer additive (zinc supplement).
- Pharmaceutical:
- Astringent in medical formulations.
6. REGULATORY COMPLIANCE
- REACH: Registered in EU.
- TSCA: Listed (USA).
- Transport: Non-hazardous for general transport.
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