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

Patial, Baljeet Singh

doi:10.18052/www.scipress.com/ILCPA.48.103

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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 (L_f), specific acoustic impedance (Z), free volume (V_f), internal pressure (π_i) 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.

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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:

March 2015

Authors:

Baljeet Singh Patial

Keywords:

Adiabatic Compressibility, Free Volume, Intermolecular Free Length, Internal Pressure, Relaxation Time, Specific Acoustic Impedance

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