Excess molar volumes and viscosity behaviour of binary mixtures of aniline/or N,N-dimethylaniline with imidazolium ionic liquids having triflate or bistriflamide anion
| Autor: | Mirjana Lj. Kijevčanin, Zoran P. Visak, Jelena M. Vuksanović, Danijela Soldatović, Ivona R. Radović |
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| Rok vydání: | 2017 |
| Předmět: |
Density
02 engineering and technology 010402 general chemistry 01 natural sciences Miscibility Viscosity chemistry.chemical_compound Aniline 020401 chemical engineering Excess molar Gibbs free energy Organic chemistry General Materials Science 0204 chemical engineering Physical and Theoretical Chemistry Imide Dimethylaniline Atmospheric temperature range Atomic and Molecular Physics and Optics 0104 chemical sciences N N-dimethylaniline Ionic liquids chemistry Ionic liquid Physical chemistry Trifluoromethanesulfonate |
| Zdroj: | Journal of Chemical Thermodynamics |
| ISSN: | 0021-9614 |
| Popis: | In this study, densities and viscosities of four binary systems {aniline/ N , N -dimethylaniline + 1-butyl-3-methylimidazolium triflate ([bmim][OTf])} and {aniline/ N , N -dimethylaniline + 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([bmim][NTf 2 ])} were measured at atmospheric pressure and within the temperature range T = (288.15 to 333.15) K. Excess molar volumes V E , viscosity deviations Δ η and excess molar Gibbs energies of activation of viscous flow ∆G ∗E were calculated and the results were fitted to a Redlich-Kister polynomial equation. Also, enthalpic and entropic parts of the ∆G ∗E function were determined, at the same composition, for three studied systems that exhibit complete miscibility, since {aniline + [bmim][OTf]} is a partially miscible system. Considering the calculated thermodynamic properties, molecular interactions in the investigated binary systems were analysed and are discussed. |
| Databáze: | OpenAIRE |
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