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Interaction of 1-Butyl-3-methylimidazolium Trifluoromethanesulfonate with Ethyl Acetate/1-Butanol: Thermophysical Properties

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Abstract

Densities, speeds of sound and viscosities of pure and the binary mixtures of [BMIM][CF3SO3] + ethyl acetate or 1-butanol have been measured over the entire range of mole fractions at T = (298.15–323.15) K and at 0.1 MPa pressure using an Anton Paar density and sound velocity meter DSA 5000M and a Lovis microviscometer 2000M. The excess molar volumes (V E), viscosity deviations (Δη) and the isentropic compressibility deviations (Δκ S ) have been calculated using the experimental data. The variations in V E, Δη and Δκ S with changes in mole fraction and temperature have been interpreted in terms of ion–dipole interactions and structural effects on mixing of IL and solvents. The Redlich–Kister equation has been fitted to the V E, Δη and Δκ S values using a multi-parametric nonlinear regression method. The PFP theory has been applied to correlate the excess molar volumes. The experimental and PFP correlated values of V E are found to be quite close to each other.

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Acknowledgments

The authors are thankful to the Chairman, Department of Chemistry, A.M.U., Aligarh for providing the necessary facilities for the compilation of this work. Financial support from the UGC (Major Research Project) F. No. 41-240/2012(SR) scheme is acknowledged.

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  1. Department of Chemistry, Aligarh Muslim University, Aligarh, U.P., 202002, India

    Naushad Anwar &  Riyazuddeen

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  1. Naushad Anwar
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Anwar, N., Riyazuddeen Interaction of 1-Butyl-3-methylimidazolium Trifluoromethanesulfonate with Ethyl Acetate/1-Butanol: Thermophysical Properties. J Solution Chem 45, 1077–1094 (2016). https://doi.org/10.1007/s10953-016-0490-x

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