Abstract

Ultrasonic Study of Molecular Interactions and Compressibility Behaviour of Magnesium Carboxylates

Author(s): M. K. Rawat

Ultrasonic measurements have been made on magnesium carboxylates (caproate, caprylate, caprate, laurate, myristate, palmitate and stearate) in 70% chloroform - 30% propylene glycol (v/v) with a view to determine the CMC (critical micelle concentration), carboxylate-solvent interaction and various acoustic parameters of the system. The value of CMC increases with increase in chain length of fatty acids. The results of ultrasonic velocity, adiabatic compressibility, intermolecular free length, specific acoustic impedence and apparent molar volume suggested that there is a significant interaction between carboxylate and solvent molecule.


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