Anionic detergent: They are so named because a large part of their molecules are anions and it is the anionic part of the molecule is involved in the cleansing actions. These are sodium salts of sulphonated long-chain alcohols or hydrocarbon. For example, sodium lauryl sulphate, sodium dodecyl benzene sulphonate, etc. Anionic detergents are used is household work and in toothpastes.
