Widely used as a surfactant in industrial and household cleaning products due to its strong detergency and emulsifying properties. Effective in hard water and stable over a wide pH range, making it suitable for heavy-duty cleaners, degreasers, and laundry detergents. Commonly found in formulations for textile processing, leather treatment, and as a wetting agent in agrochemicals. Also used in some personal care products, though its use is limited due to environmental concerns related to biodegradation and toxicity to aquatic life.