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On the solubilization of water with ethanol in hydrophobic hexafluorophosphate ionic liquids
Abstract
The solubility of water in the hydrophobic 1-alkyl-3-methylimidazolium hexafluorophosphate (alkyl = butyl, hexyl, and octyl) ionic liquids, can be significantly increased in the presence of ethanol as a co-solute. 1-Hexyl-3-methylimidazolium hexafluorophosphate and 1-octyl-3-methylimidazolium hexafluorophosphate are completely miscible with ethanol, and immiscible with water, whereas 1-butyl-3-methylimidazolium hexafluorophosphate is totally miscible with aqueous ethanol only between 0.5–0.9 mole fraction ethanol at 25 °C. At higher and lower mole fraction of ethanol, the aqueous and IL components are only partially miscible and a biphasic system is obtained upon mixing equal volumes of the IL and aqueous ethanol. The observation of a large range of total miscibility between water and the IL in the three-component system has important implications for purifications and separations from IL.
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Cites
Influence of chloride, water, and organic solvents on the physical properties of ionic liquids
Seddon, K. R., Stark, A., & Torres, M.-J. (2000) · Pure and Applied Chemistry · doi:10.1351/pac200072122275 · Cited by 2,293
Cited by
Extraction of organic compounds with room temperature ionic liquids
Poole, C. F., & Poole, S. K. (2010) · Journal of Chromatography A · doi:10.1016/j.chroma.2009.09.011 · Cited by 493
Physico-chemical processes in imidazolium ionic liquids
Dupont, J., & Suarez, P. A. Z. (2006) · Physical Chemistry Chemical Physics · doi:10.1039/b602046a · Cited by 417
Lapeña, D., Lomba, L., Artal, M., Lafuente, C., & Giner, B. (2019) · The Journal of Chemical Thermodynamics · doi:10.1016/j.jct.2018.07.031 · Cited by 129
Metadata
- Authors
- Swatloski, R. P., Visser, A. E., Reichert, W. M., Broker, G. A., Farina, L. M., Holbrey, J. D., & Rogers, R. D.
- Venue
- Green Chemistry
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2001-12-14
- Volume
- 4
- Issue
- 2
- Pages
- 81-87
- ISSN
- 1463-9262 (ISSN-L)
- 1463-9270
- OpenAlex
- W2146990593
- Cited by
- 159
- References
- 1
- FWCI
- 5.40
- Type
- journal article
- Language
- en
- Open access
- closed
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- Swatloski, R. P., Visser, A. E., Reichert, W. M., Broker, G. A., Farina, L. M., Holbrey, J. D., & Rogers, R. D. (2002). On the solubilization of water with ethanol in hydrophobic hexafluorophosphate ionic liquids. Green Chemistry. https://doi.org/10.1039/b108905f
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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