Soaps, salts of higher fatty acids, usually stearic, palmitic and oleic, and naphthenic and resin acids. As detergents and preobrazujushchij funds used water-soluble sodium, potassium and ammonium salts of fatty acids. Soap receive action caustic alkalis fats, vegetable oils and their waste in the refining or by neutralizing fatty acids, alkalis, soda, potash. Medical liquid (green) soap is oleinovaya potassium. Prepare special Soaps for the destruction of vermin, for treatment and prevention purposes. Cm. also Detergents.