Key Properties of Sodium Sulphate
| Parameter | Details |
|---|---|
| Product Name | Sodium Sulphate Anhydrous |
| Synonyms | Sodium Sulfate, Anhydrous Sodium Sulphate, Disodium Sulphate |
| CAS No. | 7757-82-6 |
| Chemical Formula | Na₂SO₄ |
| Grade | IEP / USP |
| Appearance | White or almost white powder; hygroscopic. |
| Molar Mass | 142.04 g/mol |
| Solubility | Freely soluble in water; practically insoluble in ethanol |
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Manufacturing Process
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Applications
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Specifications
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Packing and Storage
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MSDS
Manufacturing process of Sodium Sulphate
Sodium Sulphate is manufactured through a controlled process to ensure high purity, consistent quality, and compliance with pharmaceutical and industrial standards.
Step 1: Raw Material Selection
High-quality sodium and sulphate raw materials are carefully selected and tested to ensure they meet the required quality specifications.
Step 2: Preparation of Solution
The raw materials are dissolved in purified water to prepare a clear reaction solution under controlled conditions.
Step 3: Controlled Reaction
The reactants are combined under controlled temperature, pH, and agitation to form Sodium Sulphate. The reaction is continuously monitored to ensure complete conversion.
Step 4: Purification
The reaction mixture is purified to remove unreacted materials and process-related impurities, ensuring a high-purity product.
Step 5: Concentration
The purified solution is concentrated by controlled evaporation to achieve the required concentration for crystal formation.
Step 6: Crystallization
The concentrated solution is cooled under controlled conditions, allowing Sodium Sulphate crystals to form with the desired purity and particle characteristics.
Step 7: Filtration
The crystals are separated from the mother liquor using suitable filtration equipment and washed to remove residual impurities.
Step 8: Drying
The filtered Sodium Sulphate crystals are dried under controlled temperature conditions until the required moisture content is achieved. The dried product is then ready for milling, quality testing, and packaging.
Applications of Sodium Sulphate
Technical Specifications of Sodium Sulphate
Sodium Sulphate USP Specification
Download Sodium Sulphate USP Specification
| Sr. No. | Test | Specification |
|---|---|---|
| 1 | Description | White or almost white powder; hygroscopic. |
| 2 | Solubility | Freely soluble in water. |
| 3 | Identification by Sulphate | It gives reaction of Sulphate. |
| 4 | Identification by Sodium | It gives reaction of Sodium. |
| 5 | Acidity or Alkalinity | Passes the test. |
| 6 | Chlorides | Not more than 0.02% |
| 8 | Loss on Drying | Not more than 0.5% |
| 9 | Assay (On dried basis) | Not less than 99.00% and not more than 100.50% |
Sodium Sulphate EP Specification
Download Sodium Sulphate EP Specification
| Sr. No. | Test | Specification |
|---|---|---|
| 1 | Description | White or almost white powder; hygroscopic. |
| 2 | Solubility | Freely soluble in water. |
| 3 | Identification by Sulphate | It gives reaction of Sulphate. |
| 4 | Identification by Sodium | It gives reaction of Sodium. |
| 5 | Appearance of Solution | Solution is clear and colourless. |
| 6 | Acidity or Alkalinity | Passes the test |
| 8 | Chlorides | Not more than 450 ppm |
| 9 | Calcium* | Not more than 450 ppm |
| 10 | Iron* | Not more than 90 ppm |
| 11 | Magnesium* | Not more than 200 ppm |
| 12 | Loss on Drying | Not more than 0.5% |
| 13 | Assay (On dried substance) | Not less than 9.50% and not more than 101.00% |
| — | — | *Calcium, Iron and Magnesium limits apply when Sodium Sulfate Anhydrous is intended for use in the manufacture of parenteral preparations |
Packing and Storage condition of Sodium Sulphate
Packing:
Packed in 25 kg / 50 kg HDPE bags with inner liner.
Available in fiber drums or customized packaging as per customer requirements.
Tamper-proof and moisture-resistant packaging ensures product stability.
Storage:
Store in a cool, dry, and well-ventilated area away from moisture.
Keep the container tightly closed to prevent contamination.
Avoid exposure to direct sunlight and incompatible materials (such as strong acids).
Recommended storage temperature: Below 30°C.
MSDS - Sodium Sulphate
Why Choose Chemignition for
Sodium Sulphate Supply?
Quality Assurance
Grade Compliance
Sodium 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
Sodium 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.
