High-Purity Anhydrous Sodium Sulfate (Na₂SO₄), CAS 7757-82-6, is a premium inorganic salt recognized for its exceptional stability and versatility across diverse industrial applications. As a white, odorless, and fine-grained crystalline powder, it serves as a critical chemical agent in the manufacturing of glass, detergents, and cellulose products, offering superior purity and consistent chemical performance for high-demand industrial processes.
Our sodium sulfate is engineered to meet rigorous quality standards, ensuring optimal solubility and neutral pH levels. Whether utilized as a desiccant in organic synthesis laboratories or as a key raw material for sodium silicate and gypsum production, this product delivers the reliability and purity required to enhance production efficiency and final product quality in the chemical and pharmaceutical sectors.
| Sodium Sulfate (Na2SO4) w/% | 99.6% (First-class) / 92.0% (Qualified) | Water Insoluble Matter w/% | ≤ 0.005% - 0.20% |
|---|---|---|---|
| Calcium & Magnesium (Mg) w/% | ≤ 0.15% - 0.6% | Calcium (Ca) w/% | 0.01% |
| Magnesium (Mg) w/% | 0.01% | Chloride (as CI) w/% | 0.05% - 2.0% |
| Iron (Fe) w/% | ≤ 0.0005% - 0.040% | Water Content w/% | 0.05% - 1.5% |
| Whiteness (R457) /% | ≥ 88% - 82% | pH (50 g/L aqueous, 25 ºC) | 6 - 8 |
Available in purity grades up to 99.6%, minimizing impurities for sensitive chemical reactions.
Highly effective as a post-treatment desiccant in organic synthesis laboratories.
Excellent water solubility with a neutral pH, ensuring seamless integration into aqueous solutions.
Reduces surface tension and increases the solubility of synthetic detergents.
Perfect for glass, porcelain glaze, and pulp production with consistent whiteness.
Suitable for dye dilution, pharmaceuticals, and feed additives across various industries.
Strict adherence to purity standards using advanced analytical testing methods.
Integrated raw material sourcing from sulfuric acid and caustic soda suppliers.
Optimized distribution networks for rapid delivery of bulk inorganic salts.
Full compliance with international chemical safety and transport regulations.
State-of-the-art warehousing to prevent moisture absorption and maintain quality.
Professional guidance on integrating Na2SO4 into your specific production line.
| Feature | Standard Grade | Our High-Purity Grade |
|---|---|---|
| Production Yield | Average | Significantly Increased |
| Impurity Rate | Moderate (0.5%+) | Ultra-Low (≤0.005% insoluble) |
| Product Stability | Variable | High Consistency |
| Process Speed | Standard | Faster Reaction Times |
| Final Quality | Standard Grade | Premium Grade (High Whiteness) |
In synthetic detergents, it acts as a neutral salt that reduces surface tension and enhances the solubility of the detergent, improving overall cleaning efficiency.
It is widely used in organic synthesis laboratories as a post-treatment desiccant to remove trace amounts of water from organic solvents.
The papermaking and cellulose industries are the largest consumers, accounting for approximately 70% of total usage, followed by glass and chemical manufacturing.
Yes, our high-purity anhydrous sodium sulfate meets the strict requirements for use in pharmaceuticals and analytical chemical reagents.
It should be stored in a cool, dry place in sealed containers, as it is prone to absorbing moisture from the air and forming sodium sulfate decahydrate.
The primary upstream raw materials used in the manufacturing process include sulfuric acid and caustic soda.