Cetrimide can be used as a synthetic rubber, silicone oil, and asphalt emulsifier; Antistatic agents and softeners for synthetic fibers, natural fibers, and glass fibers; Phase transfer catalyst; Lotion foaming agent, surfactant, it is also used in the production of flux and solder paste as a surfactant. It has strong activity, and has a certain effect on bright spots and weak soldering.