Thermodynamics and Topological Investigations of Ternary Mixtures Containing Ionic Liquid with Organic Solvents: Excess Molar Volumes and Excess Isentropic Compressibilities
نویسنده
چکیده
We report densities, ijk ρ and speeds of sound, ijk u of 1-ethyl-3-methylimidazolium tetrafluoroborate (i) + water (j) + formamide or N,Ndimethylformamide (k) ternary mixtures over entire composition range at 293.15, 298.15, 303.15, 308.15 K. The heat capacities, Cpof 1-ethyl-3-methylimidazolium tetrafluoroborate, water, formamideand N,Ndimethylformamide have also been measured at 293.15, 298.15, 303.15, 308.15 K using micro differential scanning calorimeter (Model -μDSC 7 Evo). The measured ijk ρ and ijk u data have been utilized to determine their excess molar volumes, E ijk V and excess isentropic compressibilities, ( ) E S ijk κ values. In this study, we have used the topology of the constituent mixtures (Graph theory) to determine E ijk V and ( ) E
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