Molecular Interaction and Compressibility Behaviour of Beryllium Soaps in Non-Aqueous Medium

Abstract

The ultrasonic measurements were made on beryllium soaps (caprate, laurate and myristate) in pure benzene with a view to determine the critical miceller concentration (CMC), soap-solvent interaction and various acoustic parameters. The value of CMC decreases with the increase in the chain-length of soap. The results of ultrasonic velocity, adiabatic compressibility, intermolecular free length, specific acoustic impedence, apparent molar compressibility, relative association and solvation number suggested that there is a significant interaction between soap and solvent molecules.