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International Letters of Chemistry, Physics and Astronomy
Volume 48

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Study of Acoustic Nature of Tetrapentylammonium Bromide in N,N-Dimethyl-Ethylmethyl Ketone Systems at Different Temperatures

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Abstract:

Ultrasonic velocity, viscosity and density studies on solution of tetrapentylammonium bromide (Pen4NBr) in N,N-dimethylformamide, ethylmethylketone (EMK) and DMF-EMK solvent mixtures containing 0, 20, 40, 60, 80 and 100 mol % of DMF at 298, 308 and 318K have been reported. From the velocity, viscosity and density data values, various parameters namely, the adiabatic compressibility (β), Intermolecular free length (Lf), specific acoustic impedance (Z), free volume (Vf), internal pressure (πi) and relaxation time (τ) have been calculated. All these parameters have been discussed separately to throw light on the solute-solvent and solvent-solvent interactions.

Info:

Periodical:
International Letters of Chemistry, Physics and Astronomy (Volume 48)
Pages:
103-113
DOI:
https://doi.org/10.18052/www.scipress.com/ILCPA.48.103
Citation:
B. S. Patial "Study of Acoustic Nature of Tetrapentylammonium Bromide in N,N-Dimethyl-Ethylmethyl Ketone Systems at Different Temperatures", International Letters of Chemistry, Physics and Astronomy, Vol. 48, pp. 103-113, 2015
Online since:
Mar 2015
Authors:
Baljeet Singh Patial
Keywords:
Adiabatic Compressibility, Free Volume, Intermolecular Free Length, Internal Pressure, Relaxation Time, Specific Acoustic Impedance
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Distribution:
Open Access

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Creative Commons Attribution 4.0 International License

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