The Solubility Parameter of Carbon Dioxide and Its Solubility in Ionic Liquids

Yizhak Marcus

doi:10.1007/s10953-018-0816-y

The Solubility Parameter of Carbon Dioxide and Its Solubility in Ionic Liquids

Yizhak Marcus^*

^*Corresponding author for this work

Institute of Chemistry

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

6 Scopus citations

Abstract

Carbon dioxide as a solute interacts with solvents mainly via dispersion forces. Its Hildebrand solubility parameter, δ_H, may therefore be used to predict its dissolution. The usual definition of δ_H, involving Δ_vH, the molar enthalpy of vaporization, is inapplicable for carbon dioxide, it being a gas at the temperatures of technical interest (298 ≤ T/K ≤ 333). The ability of CO₂ to accept hydrogen bonds from donor solvents and its appreciable polarizability justify the determination of its Hansen solubility parameters. The definite equation of state of CO₂ reported by Span and Wagner permits the determination of the required parameters. The solubility of gaseous carbon dioxide in ionic liquids (room temperature ionic liquids and deep eutectic solvents) has been extensively studied and is discussed in the light of the above statements.

Original language	English
Pages (from-to)	1025-1034
Number of pages	10
Journal	Journal of Solution Chemistry
Volume	48
Issue number	7
DOIs	https://doi.org/10.1007/s10953-018-0816-y
State	Published - 31 Jul 2019

Bibliographical note

Publisher Copyright:
© 2018, Springer Science+Business Media, LLC, part of Springer Nature.

Keywords

Carbon dioxide
Deep eutectic solvents
Room temperature ionic liquids
Solubility parameter

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10.1007/s10953-018-0816-y

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abstract = "Carbon dioxide as a solute interacts with solvents mainly via dispersion forces. Its Hildebrand solubility parameter, δH, may therefore be used to predict its dissolution. The usual definition of δH, involving ΔvH, the molar enthalpy of vaporization, is inapplicable for carbon dioxide, it being a gas at the temperatures of technical interest (298 ≤ T/K ≤ 333). The ability of CO2 to accept hydrogen bonds from donor solvents and its appreciable polarizability justify the determination of its Hansen solubility parameters. The definite equation of state of CO2 reported by Span and Wagner permits the determination of the required parameters. The solubility of gaseous carbon dioxide in ionic liquids (room temperature ionic liquids and deep eutectic solvents) has been extensively studied and is discussed in the light of the above statements.",

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KW - Deep eutectic solvents

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The Solubility Parameter of Carbon Dioxide and Its Solubility in Ionic Liquids

Abstract

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Keywords

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