Key Properties of Zinc Sulphate
| Product Name: | Zinc Sulphate |
| Available form: | 1. Zinc Sulphate Monohydrate 2. Zinc Sulphate Heptahydrate |
| CAS No: | 7446-19-7 and 7446-20-0 |
| Chemical Formula: | ZnSO₄·H₂O and ZnSO₄·7H₂O |
| Molecular Weight: | 179.47 g/mol and 287.54 g/mol |
| Available Pack size: | 25 kg, 50 kg, 100 kg, or customized |
| Available Documents: | COA, MSDS and TDS |
| Grade: | IP / BP / USP |
| Self life: | 5 Year |
Manufacturing process of Zinc Sulphate
Step 1: Raw Material Selection
High-purity zinc oxide (ZnO) or zinc carbonate (ZnCO₃) and sulfuric acid (H₂SO₄) are used.
Raw materials undergo strict quality checks for purity.
Step 2: Chemical Reaction & Processing
Zinc oxide/carbonate reacts with sulfuric acid to form Zinc Sulphate solution.
The solution is filtered and refined to remove impurities.
Step 3: Crystallization & Drying
The solution is evaporated, crystallized, and dried to achieve the required purity.
Step 4: Quality Control & Testing
The product is tested for assay, solubility, moisture content, and pH as per IP/BP/USP standards.
Step 5: Packaging & Storage
Packed in HDPE bags or fiber drums to prevent contamination.
Stored in a cool, dry place to maintain stability.
Applications of Zinc Sulphate
Technical Specifications of Zinc Sulphate
Zinc Sulphate Heptahydrate IP Specification
| Sr. No. | Test | Specification |
|---|---|---|
| 1 | Description | Colourless, transparent crystals or a white. Crystalline powder: odourless; efflorescent. |
| 2 | Solubility | Very soluble in water, practically insoluble in ethanol (96 per cent). |
| 3 | Identification by Zinc | It gives reaction of Zinc. |
| 4 | Identification by Sulfates | It gives reaction of Sulfates. |
| 5 | Appearance of solution | Solution is clear and colourless |
| 6 | pH | 4.4 to 5.6 |
| 7 | Arsenic | Not more than 10 ppm |
| 8 | Iron | Not more than 100 ppm |
| 9 | Chlorides | Not more than 250 ppm |
| 10 | Assay | Not less than 99.00% and not more than 104.00% |
Zinc Sulphate Heptahydrate BP Specification
| Sr. No. | Test | Specification |
|---|---|---|
| 1 | Description | Colourless, transparent crystals or a white. Crystalline powder: odourless; efflorescent. |
| 2 | Solubility | Very soluble in water, practically insoluble in ethanol (96 per cent). |
| 3 | Identification by Zinc | It gives reaction of Zinc. |
| 4 | Identification by Sulfates | It gives reaction of Sulfates. |
| 5 | Identification by Assay | It complies with the limit of Assay. |
| 6 | Appearance of solution | Solution is clear and colourless |
| 7 | pH | 4.4 to 5.6 |
| 8 | Chlorides | Not more than 300 ppm |
| 9 | Iron | Not more than 100 ppm |
| 10 | Assay | Not less than 99.00% and not more than 104.00% |
Zinc Sulphate Heptahydrate USP Specification
| Sr. No. | Test | Specification |
|---|---|---|
| 1 | Description | White or almost white, crystalline powder or colourless, transparent crystals, efflorescent. |
| 2 | Solubility | Very soluble in water, practically insoluble in ethanol (96 per cent). |
| 3 | Identification by Assay | It complies with the limit of Assay. |
| 4 | Identification by Sulfates | It gives reaction of Sulfates. |
| 5 | Arsenic | Not more than 14 ppm |
| 6 | Lead | Not more than 20 ppm |
| 7 | Alkalies and Alkaline earths | Not more than 0.9% |
| 8 | Acidity | Passes test |
| 9 | Assay | Not less than 99.00% and not more than 108.70% |
Zinc Sulphate Monohydrate IP Specification
| Sr. No. | Test | Specification |
|---|---|---|
| 1 | Description | A white or almost white, crystalline powder or colourless, transparent crystals. |
| 2 | Solubility | Very soluble in water, practically insoluble in ethanol (96 per cent). |
| 3 | Identification by Zinc | It give reaction of zinc |
| 4 | Identification by Sulfates | It gives reaction of Sulfates. |
| 5 | Appearance of solution | Solution is clear and colourless |
| 6 | pH | 4.4 to 5.6 |
| 7 | Chlorides | Not more than 300 ppm |
| 8 | Iron | Not more than 100 ppm |
| 9 | Assay | Not less than 99.00% and not more than 101.00% |
Zinc Sulphate Monohydrate BP Specification
| Sr. No. | Test | Specification |
|---|---|---|
| 1 | Description | White or almost white, crystalline powder, or colourless, transparent crystals. |
| 2 | Solubility | Very soluble in water, practically insoluble in ethanol (96 per cent). |
| 3 | Identification by Zinc | It gives reaction of Zinc. |
| 4 | Identification by Sulfates | It gives reaction of Sulfates. |
| 5 | Identification by Assay | It complies with the limit of Assay. |
| 6 | Appearance of solution | Solution is clear and colourless |
| 7 | pH | 4.4 to 5.6 |
| 8 | Chlorides | Not more than 300 ppm |
| 9 | Iron | Not more than 100 ppm |
| 10 | Assay | Not less than 99.00% and not more than 101.00% |
Zinc Sulphate Monohydrate USP Specification
| Sr. No. | Test | Specification |
|---|---|---|
| 1 | Description | White or almost white, crystalline powder or colourless, transparent crystals, efflorescent. |
| 2 | Solubility | Very soluble in water, practically insoluble in ethanol (96 per cent). |
| 3 | Identification by Assay | It complies with the limit of Assay. |
| 4 | Identification by Sulfates | It gives reaction of Sulfates. |
| 5 | Arsenic | Not more than 14 ppm |
| 6 | Lead | Not more than 20 ppm |
| 7 | Alkalies and Alkaline earths | Not more than 0.9% |
| 8 | Acidity | Passes test |
| 9 | Assay | Not less than 99.00% and not more than 100.50% |
Packing and Storage condition of Zinc Sulphate
Packing:
- 25 kg / 50 kg HDPE bags with inner LDPE liner for moisture protection.
- Fiber drums for high-purity grades.
- Bulk packaging in jumbo bags (500 kg – 1000 kg) available upon request.
Storage Conditions:
- Store in a cool, dry, and well-ventilated area away from direct sunlight.
Why Choose Chemignition for
Zinc Sulphate Supply?
Quality Assurance
Grade Compliance
Zinc Sulphate is manufactured in adherence to stringent global pharmaceutical standards.
In-House Quality Control
Each batch undergoes rigorous testing for purity, stability, and efficacy.
Regulatory Approvals
Certified for export and compliant with international regulatory requirements.
Large-Scale Manufacturing and Export
Grade Compliance
Zinc Sulphate is manufactured in adherence to stringent global pharmaceutical standards.
In-House Quality Control
Each batch undergoes rigorous testing for purity, stability, and efficacy.
Regulatory Approvals
Certified for export and compliant with international regulatory requirements.





