Specific interactions of anions and pre-micelles in the alkaline fading of crystal violet carbocation

The pre-micellar aggregates between the CV carbocation and the negatively charged surfactant monomers make it difficult for the entry of HO− to the reaction center resulting in the inhibition of the alkaline fading of crystal violet. Electrostatic as well as hydrophobic interactions between CV+ and anionic surfactant monomers play key role in the formation of pre-micellar aggregates.