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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 (<i style="">U</i>), density (ρ) and viscosity (<img src='/image/spc_char/Etta.gif' border=0>) 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 (<img src='/image/spc_char/Etta.gif' border=0><sup>E</sup>), adiabatic compressibility (<img src='/image/spc_char/beta.gif' border=0><sup>E</sup>), free length (<i>L</i><sup>E</sup><sub>f</sub>), free volume (<i>V</i><sup>E</sup><sub>f</sub>), internal pressure (<img src='/image/spc_char/pi.gif' border=0><sup>E</sup><sub>i</sub>) and Gibb’s free energy (<img src='/image/spc_char/delta.gif' border=0><i>G</i><sup>E</sup>). The results have been discussed and interpreted in terms of structural and specific interaction predominated by hydrogen bonding.
Description: 644-650
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.48(09) [September 2010]

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