Caustic soda – colorless clear liquid. By chemical properties, caustic soda is a strong base, related to alkali. The chemical formula is NaOH.
Caustic soda is highly corrosive to aluminum and zinc; it slightly corrodes tin and lead, and does not influence other metals.
Caustic soda (sodium hydroxide) is produced via electrolysis of an aqueous solution of sodium chloride (along with electrolytic chlorine and hydrogen). The electrolysis is typically done in one of three ways: mercury cell process, diaphragm cell process and membrane cell process, the latter of which is considered as the manner with the most potential.
Caustic soda is used in processes of organic synthesis, in refinery, in textile industry for production of viscous silk and as a bleacher for textiles, in paper, aniline and paint industry, in soap making, in the production of aluminum and metal sodium, soluble glass, alkaline accumulators, Trilonum B.
Membrane and mercury refined sodium hydroxide is filled into rubberized tank-cars, polyethylene containers, drums or smaller containers. It can be transported by all transportation means in accordance with the dangerous goods regulations for this means of transportation. It should be stored in closed tanks made of strong alkali-resistant materials. The guaranteed shelf life for this product is three years from the date of production.
Diaphragm commercial sodium hydroxide is filled into steel rail tanks. It is transported by tank cars in accordance with the dangerous goods regulations. It should be stored in closed tanks made of alkali-resistant materials. The guaranteed shelf life for this product is one year from the date of production.
Caustic soda is regulated by GOST R 55064-2012.