Molecular Interaction Study of Binary Mixtures of THF with Methanol and o-Cresol - an Optical and Ultrasonic Study

• Authors: S. Parveen , S. Singh , D. Shukla , K. Singh , M. Gupta , J. Shukla
• Languages of publication: EN

Abstracts

EN

The refractive indices, densities and ultrasonic velocities of binary liquid mixtures of tetrahydrofuran (THF) with methanol and o-cresol over the entire composition range have been measured at 293, 303 and 313 K. Refractive index, density and ultrasonic velocity data have been used to evaluate the molar refraction deviation ΔR_{m}, deviation in ultrasonic velocity Δu, excess internal pressure π_{i}^{E}, excess molar enthalpy H_{m}^{E} and excess free volume V_{f}^{E}. The computed results of ΔR_{m}, Δu, π_{i}^{E}, H_{m}^{E} and V_{f}^{E} were fitted to the Redlich-Kister polynomial equation. These results suggest that specific strong interactions are taking place in THF + o-cresol mixture while dispersive forces seem to be responsible for behaviour of THF + methanol mixture. Further, experimental refractive index and density data of these mixtures were also used to test the validity of the empirical/semi-empirical relations and models for refractive index and density, respectively.

Keywords

EN

43.35.+d; 62.60.+v; 82.60.Lf

Discipline

• 43.35.+d: Ultrasonics, quantum acoustics, and physical effects of sound
• 82.60.Lf: Thermodynamics of solutions
• 62.60.+v: Acoustical properties of liquids(see also 43.35.+d in acoustics; 87.50.Y- Biological effects of acoustic and ultrasonic energy in biological and medical physics)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 116
• Issue: 6
• Pages: 1011-1017

Dates

published

2009-12

received

2009-07-10

(unknown)

2009-11-10

Contributors

author

S. Parveen

• Department of Physics, University of Lucknow, Lucknow-226007, India

author

S. Singh

• Department of Physics, University of Lucknow, Lucknow-226007, India

author

D. Shukla

• Department of Physics, University of Lucknow, Lucknow-226007, India

author

K. Singh

• Department of Physics, University of Lucknow, Lucknow-226007, India

author

M. Gupta

• Department of Physics, University of Lucknow, Lucknow-226007, India

author

J. Shukla

• Department of Physics, University of Lucknow, Lucknow-226007, India

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Identifiers

DOI

10.12693/APhysPolA.116.1011