3-Chloro-2-hydroxypropanesulfonic acid, sodium salt (CHPS-Na) is used primarily as a surfactant and detergent additive in industrial and household cleaning products, enhancing cleaning efficiency by reducing surface tension and improving wetting properties. It is commonly applied in formulations for laundry detergents, dishwashing liquids, and hard surface cleaners. In the textile industry, it serves as a dyeing auxiliary to improve color fastness, uniformity, and fiber softness for better dye absorption. In the paper and pulp industry, it acts as a water conditioner to improve bleaching efficiency and reduce dirt stains on paper. In the personal care industry, it functions as an emulsifier and stabilizer in shampoos and body washes. Additionally, it is used in water treatment processes to aid in the removal of organic contaminants.