Viscosity of binary mixtures of 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid with four organic solvents
作者： Oana Ciocirlan , Oana Croitoru , Olga Iulian
DOI: 10.1016/J.JCT.2016.06.015
关键词:
摘要: Abstract This paper reports experimental values of dynamic viscosity for four binary systems 1-ethyl-3-methylimidazolium tetrafluoroborate, [Emim][BF4], with dimethyl sulfoxide (DMSO), acetonitrile (ACN), ethylene glycol (EG) and 1,4-dioxane over the temperature ranges from 293.15 K to 353.15 K at p = 0.1 MPa. All mixtures were completely miscible entire range mole fraction, except system 1,4-dioxane. The results have been correlated by one parameter Grunberg–Nissan Fang He equations two-parameter McAllister, Eyring-UNIQUAC, Eyring-NRTL Eyring-Wilson models compared. Additionally, deviations, Δη, excess Gibbs energy activation viscous flow, G∗E, calculated fitted Redlich–Kister equation. show that all Δη are negative whole composition G∗E positive, EG. functions discussed in terms molecular interactions.
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