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Title
Acoustical behavior of cerium and thorium myristate in mixed organic solvents
Authors
ANUSHRI GUPTA and S. K. UPADHYAYA
Received
April 9, 2012
Published
Volume 47 Issue 1-2 January-February
Keywords
ultrasonic velocity, compressibility behavior, CMC, internal pressure, acoustical parameters.
Abstract
Ultrasonic velocity measurements of cerium and thorium myristate have been carried out in a mixture of 70% benzene
+ 30% methanol (V/V) at different temperatures in order to determine critical micellar concentration (CMC), soapsolvent interactions, and various acoustical parameters. The results show that ultrasonic velocity, specific acoustic
impedance, molar sound velocity increases with increasing soap concentration and decreases with the increase in
temperature, while intermolecular free length, adiabatic compressibility, apparent molar volume, apparent molar
compressibility and solvation number decreases with an increase in soap concentration. The internal pressure of the
solutions decreases with the increase in soap concentration at all temperatures. The results of ultrasonic measurements
have been interpreted in the light of well-known equations.
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