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Title: Measurements and Correlation of High-Pressure Densities of Imidazolium-Based Ionic Liquids
Authors: Tomé, Luciana I. N. 
Carvalho, Pedro J. 
Freire, Mara G. 
Marrucho, Isabel M. 
Fonseca, Isabel M. A. 
Ferreira, Abel G. M. 
Coutinho, João A. P. 
Gardas, Ramesh L. 
Issue Date: 14-Aug-2008
Publisher: American Chemical Society
Citation: Journal of Chemical & Engineering Data. 53:8 (2008) 1914-1921
Abstract: In the present work, experimental density measurements are reported along with the derived thermodynamic properties, such as the isothermal compressibility (κT), the isobaric expansivity (αp), and the thermal pressure coefficient (γv) for imidazolium-based ionic liquids (ILs), namely, 1-ethyl-3-methylimidazolium methylsulfate [C2mim][MeSO4], 1-ethyl-3-methylimidazolium ethylsulfate [C2mim][EtSO4], 1,3-diethylimidazolium bis(trifluoromethylsulfonyl)imide [C2eim][Tf2N], and 1-decyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [C10mim][Tf2N] in the pressure (0.10 < P/MPa < 35.00) and temperature (293.15 < T/K < 393.15) domains. It is shown that experimental densities are in good agreement with the predicted densities obtained by the Gardas and Coutinho method and the correlation using the Tait equation and Sanchez−Lacombe equation of state.
ISSN: 0021-9568
DOI: 10.1021/je800316b
Rights: openAccess
Appears in Collections:FCTUC Eng.Química - Artigos em Revistas Internacionais

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