Abstract
The mutual solubility of ionic liquids (ILs), 1-butyl-3-ethylimidazolium tetrafluoroborate, 1-butyl-3-propylimidazolium tetrafluoroborate, and 1,3-dibutylimidazolium tetrafluoroborate with alcohols, 1-propanol, 1-butanol, 1-pentanol, and 1-hexanol were measured at atmospheric pressure. Upper critical solution temperatures (UCSTs) were estimated from experimental results using a polynomial equation. The UCSTs increased as increasing the chain length of alcohol. On other hand, the decreasing UCSTs occurred when the alkyl chain length on the cation of ionic liquids increased. The (liquid + liquid) equilibrium data were correlated by the original UNIQUAC, extended UNIQUAC, and modified UNIQUAC models. The temperature dependence of the solubility of ILs in alcohols and alcohols in ILs is represented successfully using the UNIQUAC, extended UNIQUAC, and modified UNIQUAC models with a quadratic function of temperature for binary energy parameters.
| Original language | English |
|---|---|
| Pages (from-to) | 72-79 |
| Number of pages | 8 |
| Journal | Journal of Chemical Thermodynamics |
| Volume | 46 |
| DOIs | |
| Publication status | Published - 2012 Mar 1 |
| Externally published | Yes |
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Keywords
- (Liquid + liquid) equilibrium
- Alcohol
- Imidazolium-based ionic liquid
- Mutual solubility
- UNIQUAC model
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Materials Science(all)
- Physical and Theoretical Chemistry
Cite this
Mutual solubility measurements and correlations of imidazolium-based ionic liquid mixtures with alcohols. / Chokradjaroen, Chayanaphat; Li, Xiaoli; Tamura, Kazuhiro.
In: Journal of Chemical Thermodynamics, Vol. 46, 01.03.2012, p. 72-79.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Mutual solubility measurements and correlations of imidazolium-based ionic liquid mixtures with alcohols
AU - Chokradjaroen, Chayanaphat
AU - Li, Xiaoli
AU - Tamura, Kazuhiro
PY - 2012/3/1
Y1 - 2012/3/1
N2 - The mutual solubility of ionic liquids (ILs), 1-butyl-3-ethylimidazolium tetrafluoroborate, 1-butyl-3-propylimidazolium tetrafluoroborate, and 1,3-dibutylimidazolium tetrafluoroborate with alcohols, 1-propanol, 1-butanol, 1-pentanol, and 1-hexanol were measured at atmospheric pressure. Upper critical solution temperatures (UCSTs) were estimated from experimental results using a polynomial equation. The UCSTs increased as increasing the chain length of alcohol. On other hand, the decreasing UCSTs occurred when the alkyl chain length on the cation of ionic liquids increased. The (liquid + liquid) equilibrium data were correlated by the original UNIQUAC, extended UNIQUAC, and modified UNIQUAC models. The temperature dependence of the solubility of ILs in alcohols and alcohols in ILs is represented successfully using the UNIQUAC, extended UNIQUAC, and modified UNIQUAC models with a quadratic function of temperature for binary energy parameters.
AB - The mutual solubility of ionic liquids (ILs), 1-butyl-3-ethylimidazolium tetrafluoroborate, 1-butyl-3-propylimidazolium tetrafluoroborate, and 1,3-dibutylimidazolium tetrafluoroborate with alcohols, 1-propanol, 1-butanol, 1-pentanol, and 1-hexanol were measured at atmospheric pressure. Upper critical solution temperatures (UCSTs) were estimated from experimental results using a polynomial equation. The UCSTs increased as increasing the chain length of alcohol. On other hand, the decreasing UCSTs occurred when the alkyl chain length on the cation of ionic liquids increased. The (liquid + liquid) equilibrium data were correlated by the original UNIQUAC, extended UNIQUAC, and modified UNIQUAC models. The temperature dependence of the solubility of ILs in alcohols and alcohols in ILs is represented successfully using the UNIQUAC, extended UNIQUAC, and modified UNIQUAC models with a quadratic function of temperature for binary energy parameters.
KW - (Liquid + liquid) equilibrium
KW - Alcohol
KW - Imidazolium-based ionic liquid
KW - Mutual solubility
KW - UNIQUAC model
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U2 - 10.1016/j.jct.2011.05.023
DO - 10.1016/j.jct.2011.05.023
M3 - Article
VL - 46
SP - 72
EP - 79
JO - Journal of Chemical Thermodynamics
JF - Journal of Chemical Thermodynamics
SN - 0021-9614
ER -