Journal of Pure and Applied Ultrasonics

J. D. Pandey ¹, Vinay Sanguri ¹, Sunil ², Surendra Kumar ²

Affiliations
1 Department of Chemistry, University of Allahabad, Allahabad-211002, IN
2 Department of Chemistry, Mahatma Gandhi Chitrakoot Gramodaya Vishvavidyalaya Chitrakoot, Satna-485334, IN

Abstract

For the first time ultrasonic velocity- density correlations have applied to ionic and isotopic liquids. Familiar Auerbach relation, Altenburg relation and temperature dependent correlation were employed to calculate surface tension of N-octyl-3-methyl pyridiniumtetraflouoroborate[o3mpy][BF₄] and five pairs of isotopic liquids named, H₂O-D₂O,C₆H₆-C₆D₆,C₆H₁₂-C₆D₁₂, CH₃OH-CH₃OD and C₂H₅OH-C₂H₅OD. All the correlations yield excellent results except Auerbach relation. For the applicability of this relation we have modified it. The modified Auerbach relation also gives good agreement with the experimental values of surface tension.

Keywords

Surface Tension, Ionic Liquid, Isotopic Liquid, Ultrasonic Velocity.

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J. D. Pandey ¹, Vandana Pathak ², Sunil ², S. K. Vishvakarma ²

Affiliations
1 Department of Chemistry, University of Allahabad, Allahabad-211002, IN
2 Department of Physical Sciences, MGCG Vishvavidyalaya, Chitrakoot, Satna-485334, IN

Abstract

A correlation between thermal conductivity (λ) and ultrasonic velocity (u) of liquid has been made. Using the density (ρ) and ultrasonic velocity data for liquids Ar and Kr, the values of λ have been calculated at different temperatures. It is interesting to note that the excellent agreement between experimental and theoretical values is found for both the liquids.

Keywords

Ultrasonic Velocity, Thermal Conductivity, Density.

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