Widely used in laundry detergents and cleaning products due to its strong ability to remove oil and dirt from fabrics and surfaces. Effective in hard water, making it a preferred choice for household and industrial detergents. Commonly found in liquid soaps, dishwashing agents, and industrial cleaners for its foaming and wetting properties. Also used in emulsion polymerization as a stabilizer and dispersing agent. Frequently employed in laboratory settings as a reference standard for quality control and analytical testing of surfactant-based formulations.