In the chemical pulping process, caustic soda in the form of lye is usually used to remove the lignin that binds the fibers. Caustic soda is also used is in paper recycling.

Caustic soda is widely used in the textile industry for processes such as scouring, mercerization and dyeing, which are the integral parts of the textile manufacturing process.

Saponification process is the heart of Soap-Making. It is the chemical reaction in which the building blocks of fats and oils (triglycerides) react with aqueous caustic to form Soaps.

Caustic soda is used as alkalinity sources in the liquid scrubbing of Sulphur dioxide in flue gases produced from crude-oil-fired steam generators used in thermally enhanced oil recovery.

Alumina is produced from bauxite, an ore that is mined from topsoil in various tropical and subtropical regions using The Bayer process.

Caustic soda serves as a reactive agent in the production process, delivering sodium to the final product in various ways and for many different purposes.

In water treatment, caustic is a powerful means for pH adjustment & neutralizing water streams. Caustic soda is sometimes used during water treatment to raise water pH.

Caustic soda is frequently used as an industrial cleaning agent especially for cleaning and sterilizing of bottles in beverage industry.