Name: Sodium sulfate anhydrous 99%

Molecular formula: Na₂SO₄

CAS No.: 7757-82-6

Description:

Sodium sulfate anhydrous 99% is an inorganic salt that appears as white monoclinic crystalline or powder. It is soluble in water, and its aqueous solution is alkaline. It is soluble in glycerol but insoluble in ethanol. It is hygroscopic and readily absorbs three molecules of water in humid air. Its melting point is approximately 800°C.

It is primarily used as a filler in the synthesis of detergents. In the papermaking industry, it is used as a cooking agent when manufacturing sulfate pulp. In the glass industry, it is used as a substitute for pure alkali. In the chemical industry, it serves as a raw material for the production of sodium sulfide, sodium silicate, and other chemical products. In the textile industry, it is used to prepare coagulation baths for viscose fiber spinning. In the pharmaceutical industry, it is used as a laxative. Additionally, it finds applications in non-ferrous metallurgy and leather processing, among others.

It is packaged in plastic woven bags lined with polyethylene, with a net weight of 50kg or 100kg per bag.

It should be stored in a well-ventilated, dry warehouse. In summer or in regions with high temperatures, it is prone to melting and clumping. During storage and transportation, moisture and rain should be avoided. It should not be mixed with food, coal, cement, etc., to prevent contamination. In case of fire, it can be extinguished using water and various fire extinguishers.