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What is Caustic Lye?

Mostly all caustic soda is generated by the electrolysis of sodium chloride solution using one of three cell types: mercury, diaphragm and membrane cells. The electrolysis process produces 2.25 tonnes of 50% Caustic Lye with each tonne of chlorine.

The primary raw material is common salt, usually in the form of underground deposits which are brought to the surface as a solution in a pumped high pressure water supply. The sodium chloride solution is often called brine.

Caustic Lye

Caustic Lye uses:

Caustic soda is used primarily in the following areas: manufacturing industries including cotton, synthetics, plastics, textiles and soaps; organic and inorganic chemistry industries (in the manufacture of sodium compounds); the food industry; water treatment; the agricultural industry; etc.
It is used in the manufacture of paper, textiles, detergents, synthetics, explosives, dyes and petroleum products; in the processing of cotton textiles; and, in laundry, bleaching, oxidation, electroplating, and electrolyte removal. Other uses include absorbing acid gases such as carbon dioxide or sulfur dioxide.
Caustic soda is used as a raw material in the production of sodium hypochlorite, as well as in all types of textiles (finishing and dressing, obtaining cellulose fibers from the viscose process, etc.) It is used as a surfactant and detergent  in the paper and pulp, and oil and gas industries.

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