Please use this identifier to cite or link to this item: https://hdl.handle.net/10321/2927
Title: Synthesis, characterization and thermophysical properties of ionic liquid N-methyl-N-(2′,3′-epoxypropyl)-2-oxopyrrolidinium chloride and its binary mixtures with water or ethanol at different temperatures
Authors: Vasanthakumar, Arumugam 
Bahadur, Indra 
Redhi, Gan G. 
Gengan, Robert Moonsamy 
Anand, Krishnan 
Keywords: Density;Speed of sound;Ionic liquid;Water;Ethanol;Redlich–Kister equation
Issue Date: 2016
Publisher: Elsevier
Source: Vasanthakumar, A. et al. 2016. Synthesis, characterization and thermophysical properties of ionic liquid N-methyl-N-(2′,3′-epoxypropyl)-2-oxopyrrolidinium chloride and its binary mixtures with water or ethanol at different temperatures. Journal of Molecular Liquids. 219: 685-693.
Journal: Journal of molecular liquids (Online) 
Abstract: 
A novel ionic liquid, namely, N-methyl-N-(2′,3′-epoxypropyl)-2-oxopyrrolidiniumchloride [Epmpyr]+[Cl]− was
synthesized and characterized by different techniques such as NMR (1H and 13C), FTIR, and elemental analysis.
The water content of the ionic liquid was checked by Karl Fisher titration. Further, the density, ρ, and speed of
sound, u, were measured for the above ionic liquid and the corresponding binary systems with water or ethanol
at different temperatures ranging from (293.15 to 313.15) K. The derived thermodynamic properties for instance
excess molar volumes, VE
m isentropic compressibility, κs, and deviation in isentropic compressibility, Δκs, were
investigated from the density and speed of sound data, respectively. It is noted that density and speed of
sound of the ionic liquid and its binary mixtures were decreased with increase in temperature, whereas excess
molar volume, isentropic compressibility, and deviation in isentropic compressibility values increased. Derived
properties such as excess molar volumes, and deviation in isentropic compressibility data were fitted to the
Redlich-Kister polynomial equation. The measured and calculated data were interpreted in terms of intermolecular
interfaces and structural effects between similar and dissimilar molecules upon mixing.
URI: http://hdl.handle.net/10321/2927
ISSN: 0167-7322 (print)
1873-3166
DOI: https://doi.org/10.1016/j.molliq.2016.03.080
Appears in Collections:Research Publications (Applied Sciences)

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