Surfactants are compounds that lower the surface tension (or interfacial tension) between two liquids or between a liquid and a solid. Cationic surfactants are basically soaps or detergents, in which the hydrophilic, or water-loving, end contains a positively-charged ion, or cation. Typical examples are trimethylalkylammonium chlorides, and the chlorides or bromides of benzalkonium and alkylpyridinium ions. All are examples of quats, so named because they all contain a quaternary ammonium ion.
Cite this article:
D. R. Mundhada, A. V. Chandewar. An Overview on Cationic Surfactant. Res. J. Pharm. Dosage Form. and Tech. 7(4): Oct.-Dec., 2015; Page 294-300. doi: 10.5958/0975-4377.2015.00041.5