Journal
JOURNAL OF CHEMICAL THERMODYNAMICS
Volume 68, Issue -, Pages 98-108Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jct.2013.08.034
Keywords
Ionic liquids; Propylene carbonate; Volumetric properties; Electrical conductivity; Viscosity
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Funding
- Ministry of Education and Science of Serbia under project contract [ON172012]
- Provincial Secretariat for Science and Technological Development of APV
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Densities of binary liquid mixtures of 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide, [bmim][NTf2], with propylene carbonate (PC) were measured at temperatures from (293.15 to 323.15) K and at atmospheric pressure over the whole composition range. The electrical conductivity was measured in the range from (293.15 to 328.15) K. Also, viscosity of [bmim][NTf2] + PC binary mixtures was measured from (298.15 to 333.15) K. Excess molar volumes, VE, have been obtained from the experimental densities and were fitted to Redlich-Kister polynomial equation. Other volumetric properties, such as isobaric thermal expansion coefficients, partial molar volumes, apparent molar volumes and partial molar volumes at infinite dilution have been also calculated, in order to obtain information about interactions between PC and selected ionic liquid. Results are discussed in order to understand the hydrogen bonds formation between components of the mixture. (C) 2013 Elsevier Ltd. All rights reserved.
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