Room Temperature Ionic Liquids: Their Cohesive Energies, Solubility Parameters and Solubilities in Them

Yizhak Marcus

doi:10.1007/s10953-017-0634-7

Room Temperature Ionic Liquids: Their Cohesive Energies, Solubility Parameters and Solubilities in Them

Yizhak Marcus^*

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

The cohesive energies of room temperature ionic liquids, RTILs, at the reference temperature T_ref = 298.15 K have been obtained from their molar enthalpies of vaporization. They are ce(298) = ∆_vH°(298) − 298.15R, on regarding the vapors as single ion-paired molecules. The cohesive energy densities, ced = ce/V = δ_H ² are the squares of the (Hildebrand) solubility parameters of the RTIL, which are presented for many RTILs. The solubilities of a variety of solutes in RTILs are discussed in relation to the solubility parameters. It turned out that the δ_H values of RTILs, obtained from the enthalpies of vaporization, may be used for empirical correlations, but are not able to predict the solubilities of solutes in RTILs.

Original language	English
Pages (from-to)	1778-1791
Number of pages	14
Journal	Journal of Solution Chemistry
Volume	46
Issue number	9-10
DOIs	https://doi.org/10.1007/s10953-017-0634-7
State	Published - 1 Oct 2017

Bibliographical note

Publisher Copyright:
© 2017, Springer Science+Business Media New York.

Keywords

Cohesive energies densities
Gas solubilities in RTILs
Room temperature ionic liquids
Solubility parameters

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10.1007/s10953-017-0634-7

Cite this

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title = "Room Temperature Ionic Liquids: Their Cohesive Energies, Solubility Parameters and Solubilities in Them",

abstract = "The cohesive energies of room temperature ionic liquids, RTILs, at the reference temperature Tref = 298.15 K have been obtained from their molar enthalpies of vaporization. They are ce(298) = ∆vH°(298) − 298.15R, on regarding the vapors as single ion-paired molecules. The cohesive energy densities, ced = ce/V = δH 2 are the squares of the (Hildebrand) solubility parameters of the RTIL, which are presented for many RTILs. The solubilities of a variety of solutes in RTILs are discussed in relation to the solubility parameters. It turned out that the δH values of RTILs, obtained from the enthalpies of vaporization, may be used for empirical correlations, but are not able to predict the solubilities of solutes in RTILs.",

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Room Temperature Ionic Liquids: Their Cohesive Energies, Solubility Parameters and Solubilities in Them

Abstract

Bibliographical note

Keywords

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