(i) Cationic detergents: These are quaternary ammonium salts of amines with acetates, chlorides, and bromides, e.g., cetyltrimethylammonium bromide. These have germicidal property.
(ii) Anionic detergents: These are sodium salts of sulphonated long chain alcohols or hydrocarbons e.g., sodium dodecylbenzene sulphonate. These are used in toothpaste and household works.
