Advantages of ion-based mole fractions for describing phase equilibria in ionic liquids: Application to gas solubility

Despite the obvious ionic character of ionic liquids (ILs), previous studies of phase equilibria in these media were formulated implicitly assuming a "molecular" behavior of the ionic solvent. In this work, a more appropriate thermodynamic treatment is applied to describe the solubility of...

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Detalles Bibliográficos
Autores principales: Longinotti, M.P., Alvarez, J.L., Japas, M.L.
Formato: JOUR
Materias:
Binary mixtures
Ionization of liquids
Ions
Phase equilibria
Solubility
Ternary systems
Thermodynamics
Composition ranges
Gas solubilities
Ideal behaviors
Ionic characters
Mole fractions
Solid-liquid phase equilibrium
Thermodynamic formulations
Thermodynamic treatments
Ionic liquids
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_15206106_v113_n11_p3461_Longinotti
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_15206106_v113_n11_p3461_Longinotti2023-10-03T16:20:16Z Advantages of ion-based mole fractions for describing phase equilibria in ionic liquids: Application to gas solubility Longinotti, M.P. Alvarez, J.L. Japas, M.L. Binary mixtures Ionization of liquids Ions Phase equilibria Solubility Ternary systems Thermodynamics Composition ranges Gas solubilities Ideal behaviors Ionic characters Mole fractions Solid-liquid phase equilibrium Thermodynamic formulations Thermodynamic treatments Ionic liquids Despite the obvious ionic character of ionic liquids (ILs), previous studies of phase equilibria in these media were formulated implicitly assuming a "molecular" behavior of the ionic solvent. In this work, a more appropriate thermodynamic treatment is applied to describe the solubility of gases in ILs. According to our results, if the concentration is expressed on an ionic basis, solutions of simple gases in ILs display rather small deviations from ideal behavior in wide composition ranges, whereas deviations are larger when the solvent is considered as an anion-cation pair. The present thermodynamic formulation also accounts for the observed solid-liquid phase equilibria of molecular and IL binary mixtures. © 2009 American Chemical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15206106_v113_n11_p3461_Longinotti
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Binary mixtures
Ionization of liquids
Ions
Phase equilibria
Solubility
Ternary systems
Thermodynamics
Composition ranges
Gas solubilities
Ideal behaviors
Ionic characters
Mole fractions
Solid-liquid phase equilibrium
Thermodynamic formulations
Thermodynamic treatments
Ionic liquids
spellingShingle Binary mixtures
Ionization of liquids
Ions
Phase equilibria
Solubility
Ternary systems
Thermodynamics
Composition ranges
Gas solubilities
Ideal behaviors
Ionic characters
Mole fractions
Solid-liquid phase equilibrium
Thermodynamic formulations
Thermodynamic treatments
Ionic liquids
Longinotti, M.P.
Alvarez, J.L.
Japas, M.L.
Advantages of ion-based mole fractions for describing phase equilibria in ionic liquids: Application to gas solubility
topic_facet Binary mixtures
Ionization of liquids
Ions
Phase equilibria
Solubility
Ternary systems
Thermodynamics
Composition ranges
Gas solubilities
Ideal behaviors
Ionic characters
Mole fractions
Solid-liquid phase equilibrium
Thermodynamic formulations
Thermodynamic treatments
Ionic liquids
description Despite the obvious ionic character of ionic liquids (ILs), previous studies of phase equilibria in these media were formulated implicitly assuming a "molecular" behavior of the ionic solvent. In this work, a more appropriate thermodynamic treatment is applied to describe the solubility of gases in ILs. According to our results, if the concentration is expressed on an ionic basis, solutions of simple gases in ILs display rather small deviations from ideal behavior in wide composition ranges, whereas deviations are larger when the solvent is considered as an anion-cation pair. The present thermodynamic formulation also accounts for the observed solid-liquid phase equilibria of molecular and IL binary mixtures. © 2009 American Chemical Society.
format JOUR
author Longinotti, M.P.
Alvarez, J.L.
Japas, M.L.
author_facet Longinotti, M.P.
Alvarez, J.L.
Japas, M.L.
author_sort Longinotti, M.P.
title Advantages of ion-based mole fractions for describing phase equilibria in ionic liquids: Application to gas solubility
title_short Advantages of ion-based mole fractions for describing phase equilibria in ionic liquids: Application to gas solubility
title_full Advantages of ion-based mole fractions for describing phase equilibria in ionic liquids: Application to gas solubility
title_fullStr Advantages of ion-based mole fractions for describing phase equilibria in ionic liquids: Application to gas solubility
title_full_unstemmed Advantages of ion-based mole fractions for describing phase equilibria in ionic liquids: Application to gas solubility
title_sort advantages of ion-based mole fractions for describing phase equilibria in ionic liquids: application to gas solubility
url http://hdl.handle.net/20.500.12110/paper_15206106_v113_n11_p3461_Longinotti
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AT alvarezjl advantagesofionbasedmolefractionsfordescribingphaseequilibriainionicliquidsapplicationtogassolubility
AT japasml advantagesofionbasedmolefractionsfordescribingphaseequilibriainionicliquidsapplicationtogassolubility
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