Used in the following industries and applications: 1) Pulp and paper: The largest application for NAOH world wide. Uses include the de-inking of waste paper and water treatment as well as being a raw material in the pulping and bleaching process. 2) Textiles: Used to process cotton and dye synthetic fibers, such as nylon and polyester. 3) Soap and detergents: Used in saponification, the chemical process that converts fat, tallow and vegetable oils into soap.NAOH is used to manufacture anionic surfactants, a crucial component in most detergents and cleaning products. 4) Bleach manufacturing: Used to make bleach which has industrial and consumer applications such as mold and mildew control around the home or to control microbial levels in swimming pools and hot tubs. 5) Petroleum products: Used to explore, produce and process petroleum . NAOH removes objectionable smells from these materials that result from the presence of mercaptans. 6) Aluminum production: Used to dissolve bauxite ore, the raw material for aluminum production. 7) Chemical processing: Used as a basic feedstock for a wide range of downstream products, including solvents, plastics, fabrics, adhesives, coatings, herbicides, dyes, inks, pharmaceuticals, etc. 8) Other small applications for NAOH include water treatment, cleaners for beverage bottles, cleaning products such as drain and pipe cleaners, oven cleaner and other household cleaning products and home soap making.welcome to buy it.