Octadecyl trimethyl ammonium chloride is soluble in water, ethanol and methanol. It has good compatibility with cationic, nonionic and amphoteric surfactants. Octadecyl trimethyl ammonium chloride has good chemical stability, heat resistance, light resistance, pressure resistance, resistance to acid and alkali, and it also has excellent properties of permeability, softness, emulsification, anti electrostatic and bactericidal. z