N-Hexadecyltrimethylammonium chloride is a cationic surfactant, widely used in asphalt emulsification and waterproof coating emulsification, glass fiber softening processing, industrial auxiliaries and silicone oil emulsifier Chemalbook, pharmaceutical industrial auxiliaries, hair conditioner cosmetics emulsification conditioning, textile and leather chemical auxiliaries, lotion foaming agent, fabric fiber softening and anti-static, polyester silk auxiliaries, organic bentonite covering agent, protein flocculation and water treatment flocculation Disinfectant, washing, disinfection and sterilization of silkworm tools in the silkworm room.