Polyoxyethylene (40) tridecyl ether is widely used as a nonionic surfactant in various industrial and household applications. It is commonly found in cleaning products, such as detergents and degreasers, where it helps to emulsify oils and dirt, making them easier to remove. In the cosmetics and personal care industry, it is utilized in formulations like shampoos, body washes, and lotions to enhance the spreadability and stability of the products. Additionally, it serves as a wetting agent in agricultural chemicals, improving the coverage and absorption of pesticides and herbicides on plant surfaces. Its ability to reduce surface tension also makes it valuable in textile processing, where it aids in the even distribution of dyes and finishes.