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Sodium sulfate is an inorganic chemical compound with the formula Na2SO4. It typically appears as a white crystalline solid and is highly soluble in water. This compound is produced through natural processes or synthetic methods, often derived from the reaction of sulfuric acid with sodium carbonate or sodium chloride. Sodium sulfate is widely used in various industrial applications due to its properties as a drying agent and its ability to enhance the performance of detergents and textiles.

| Chemical formula | Na2SO4 |
| Molar mass | 142.04 g/mol |
| Appearance | White crystalline solid |
| Solubility in water | Highly soluble |
| Melting point | 884 °C |
| Density | 2.664 g/cm³ |
When purchasing sodium sulfate, buyers should consider the grade required for their specific application, as it can vary from technical to food-grade. It's important to specify the desired purity level, as well as any necessary certifications for safety and compliance. Additionally, buyers should indicate the quantity needed, as bulk orders may affect pricing and availability.
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It is used in detergents, textiles, glass production, and chemical synthesis.
Food-grade sodium sulfate is safe for food applications, but it must meet specific purity standards.
It can be produced through natural processes or by reacting sulfuric acid with sodium carbonate.
It should be stored in a cool, dry place away from moisture and incompatible substances.
Yes, but only if it meets cosmetic-grade standards and regulations.
Anhydrous sodium sulfate contains no water, while hydrated forms contain water molecules in their structure.