Caustic soda
(technical grade),
aqueous solution 48%

Liquid caustic soda is a reagent for a large number of chemical reactions, including neutralization of acids, hydrolysis, saponification and replacement of other groups in organic compounds with hydroxyl ions. It is used in various industries, including the production of soap and detergents, ceramics, food and beverages. It is also used in the textile industry, pharmaceuticals, in the extraction and purification of water. Liquid caustic soda is a reagent in the production of aluminum, phosphate, biodiesel. It is also used for pH correction. Most often this reagent is used in the pulp and paper industry and for chemical production.

In the oil and gas industry, caustic is used as an additive in drilling mud to increase its alkalinity and viscosity and to neutralize acidic gases (for example, hydrogen sulfide).