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IJPAP Vol.48(09) [September 2010] >


Title: Acoustical properties of ternary mixtures of 1-alkanols in di-isopropyl ether and 2,2,2-trifluoroethanol mixed solvent
Authors: Palani, R
Balakrishnan, S
Keywords: Ultrasonic velocity
Adiabatic compressibility
Free length
Free volume
Gibb’s free energy
Issue Date: Sep-2010
Publisher: CSIR
Abstract: Ultrasonic velocity (U), density (ρ) and viscosity () for the ternary liquid mixtures of diisopropyl ether+2,2,2-trifluoroethanol+1-propanol, diisopropyl ether+2,2,2-trifluoroethanol+1-butanol and diisopropyl ether+2,2,2-trifluoro-ethanol+1-pentanol have been measured as a function of the composition at 303, 308 and 313 K. The experimental data have been used to calculate some excess thermodynamical parameters such as viscosity (E), adiabatic compressibility (E), free length (LEf), free volume (VEf), internal pressure (Ei) and Gibb’s free energy (GE). The results have been discussed and interpreted in terms of structural and specific interaction predominated by hydrogen bonding.
Page(s): 644-650
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.48(09) [September 2010]

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