In such detergents , the anionic part of the molecule is involved in the cleansing action .
They are mostly used for household work and in tooth paste
2 . Cationic Detergents
These are quaternary ammonium salts of arnines with acetates , chlorides or bromides as anion . For example ,
Cationic detergents are used in hair conditioner . They have germicidal properties but are expensive therefore , these are of limited use .
3 . Non-ionic Detergents
Such detergents does not contain any ion in their constitution . One such detergent can be obtained by reaction of stearic acid and polyethylene glycol .
Liquid dish washing detergents are non-ionic type , Mechanism of cleansing action of this type of detergents is the same as that of soaps .