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Phase Equilibria of the 1-Hexyl-2,3-dimethylimidazolium Bis(trifluoromethylsulfonyl)imide and Carbon Dioxide Binary System and 1-Octyl-2,3-dimethylimidazolium Bis(trifluoromethylsulfonyl)imide and Carbon Dioxide Binary System

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Department of Biological and Chemical Engineering, Hongik University, Jochiwon, 339-701 Korea
*Tel.: +82-41-860-2296. Fax: +82-41-866-6940; e-mail: [email protected]
Cite this: J. Chem. Eng. Data 2012, 57, 8, 2160–2164
Publication Date (Web):July 6, 2012
https://doi.org/10.1021/je300098p
Copyright © 2012 American Chemical Society

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    Abstract

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    A high-pressure variable-volume view cell was used to measure the phase equilibria of a 1-hexyl-2,3-dimethylimidazolium bis(trifluoromethylsulfonyl)imide ([HMMIM][Tf2N]) and CO2 binary system in the temperature range of (298.2 to 323.2) K at intervals of 5.0 K. In addition, the vapor–liquid equilibrium of a 1-octyl-2,3-dimethylimidazolium bis(trifluoromethylsulfonyl)imide ([OMMIM][Tf2N]) and CO2 binary system was determined in the temperature range (288.2 to 323.2) K at 5.0 K intervals. The Peng–Robinson equation of state with the van der Waals two-parameter mixing rule was used to correlate the vapor–liquid equilibria of CO2 and ionic liquids. The effect of the alkyl chain length in the cation on the phase behavior of a trisubstituted-imidazolium-cation-based ionic liquid and CO2 binary system was investigated.

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    5. Soon Kang Hong, YoonKook Park, Dattaprasad Marutrao Pore. Experimental determination and prediction of phase behavior for 1-butyl-3-methylimidazolium nonafluorobutyl sulfonate and carbon dioxide. Korean Journal of Chemical Engineering 2014, 31 (9) , 1656-1660. https://doi.org/10.1007/s11814-014-0097-0
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