Sodium sulphate anhydrous

Sodium sulphate anhydrous
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Technical anhydrous sodium sulfate is an inorganic chemical compound with the formula Na2SO4. It is a white crystalline material with hygroscopic properties, rhombic or hexagonal structure. Sodium sulphate is widely used in the cellulose and paper industry, glass industry, in the production of paints, dyes, washing powders, detergents, as well as in pharmacy, tanning, heat and power plants and water treatment.

Sodium sulfate is an inorganic chemical compound, a salt of sulfuric acid and sodium hydroxide. It takes an anhydrous or hydrated form - heptahydrate and decahydrate. In nature, it occurs as a very rare mineral thenardite. One of the methods of obtaining sodium sulfate is the Mannheim process based on the reaction of sodium chloride with sulfuric acid. It has a wide range of chemical properties used in many industries. In the glass industry, it is used as an auxiliary agent in the production of glass. Even a small amount of this substance causes clearly visible effects: it improves melting, eliminates the formation of alkaline bubbles and settling of the molten mass. Anhydrous sodium sulphate, thanks to its wide properties, is involved in the process of paper formation. It helps to separate the cellulose from the mother liquor. This agent is also added to various products, an example of such use can be washing powders, paints, dyes, fixatives or developers. This material is also used in medicine as the so-called Glauber salt. Thanks to its hygroscopicity, it can perfectly absorb water from the environment, which makes it an excellent moisture absorber.
  • Chemical formula : Na2SO4
  • The content of the main component (Na 2 SO 4 ) min. 99.6%
  • CAS No.: 7757-82-6
  • Molar mass 142.04 g/mol g
  • Form: solid
  • Smell: odorless
  • pH: 5-9
  • Melting point: 884-888 °C
  • Boiling point: no data available
  • Auto-ignition temperature: not applicable
  • Flash point: not applicable
  • Explosion limits: not applicable
  • Bulk density: approx. 1200-1700 kg/m3
  • Solubility in water: 200 g/l (20°C)
  • Hygroscopic raw material, protect from moisture
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Chemical raw materials and intermediates