Investigations of Molecular Interactions in the Binary Mixtures of 1-Butyl-3-methylimidazolium bis(Trifluoromethanesulfonyl) Amide and 2-Propoxyethanol from T = (298.15 to 323.15) K at Atmospheric Pressure

Density and speed of sound values of pure and binary mixtures of 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl) amide ([Bmim][NTf 2 ]) and 2-propoxyethanol (2-PR) were determined over the whole composition range as a function of temperature from 298.15 to 323.15 K) under atmospheric press...

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Bibliographic Details
Published in:Journal of solution chemistry 2018-12, Vol.47 (12), p.1980-2006
Main Authors: Prasad, G., Reddy, K. Muralidhar, Padamasuvarna, R., Mohan, T. Madhu, Krishna, T. Vijaya, Rao, S. Govardhana
Format: Article
Language:English
Subjects:
Atmospheric pressure
Binary mixtures
Chemistry
Chemistry and Materials Science
Compressibility
Condensed Matter Physics
Geochemistry
Industrial Chemistry/Chemical Engineering
Infrared spectroscopy
Inorganic Chemistry
Mathematical analysis
Molar volume
Molecular interactions
Oceanography
Physical Chemistry
Polynomials
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Summary:Density and speed of sound values of pure and binary mixtures of 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl) amide ([Bmim][NTf 2 ]) and 2-propoxyethanol (2-PR) were determined over the whole composition range as a function of temperature from 298.15 to 323.15 K) under atmospheric pressure. Heat capacity values of the pure compounds were also measured. The experimental values were used to calculate excess molar volume, excess isentropic compressibility, excess intermolecular free length and excess speed of sound values. The excess values were fitted with the Redlich–Kister polynomial equation to estimate the binary coefficients and standard deviation between the experimental and calculated values. The partial molar volumes at infinite dilutions were also calculated. The trends of variation of these properties were interpreted in light of the solute–solvent interactions occurring in the system. Further, the molecular interactions in the binary system were analyzed using experimental FT-IR spectra recorded at room temperature.
ISSN:0095-9782
1572-8927
DOI:10.1007/s10953-018-0833-x