RT Journal Article
T1 Viscosity-pressure dependence for nanostructured ionic liquids. Experimental values for butyltrimethylammonium and 1-butyl-3- methylpyridinium bis(trifluoromethylsulfonyl)imide
A1 Dakkach, Mohamed
A1 Gaciño, Félix M.
A1 García Guimarey, María Jesús
A1 Mylona, Sofia
A1 Paredes, Xavier
A1 Pérez Comuñas, María José
A1 Fernández Pérez, Josefa
A1 Assael, Marc J.
K1 Vibrating wire viscometer
K1 Falling body viscometer
K1 Rotational viscometer
K1 High pressure viscosity
K1 Ionic liquids
AB New measurements of the viscosity of three ionic liquids (ILs), 1-ethyl-3-methylimidazoliumethylsulfate, 1-butyl-3-methylpyridinium bis(trifluoromethylsulfonyl)imide and butyltrimethylammonium bis(trifluoromethylsulfonyl)imide were carried out in two laboratories by using three different devices. The viscosity of these ionic liquids was measured at atmospheric pressure by means of a vibrating wire viscometer and a rotational viscometer with relative expanded uncertainties (k = 2) of 1.5% and 1%, respectively.Viscosity behaviour of the last two ILs at high pressure was studied with a falling body viscometer with a relative expanded uncertainty (k = 2) of 3.5%. In addition, the universal pressure-viscosity coefficient was calculated for these fluids, as well as for 14 ionic liquids studied in the literature. Taking into account the high pressure viscosity behaviour of 30 ILs it have been concluded that for similar viscosity grade ILs based on tris(pentafluoroethyl)trifluorophosphate anion present the highest film thickness capacity
PB Elsevier
SN 0021-9614
YR 2018
FD 2018-02-01
LK http://hdl.handle.net/10347/32134
UL http://hdl.handle.net/10347/32134
LA eng
NO Mohamed Dakkach, Félix Μ. Gaciño, María J.G. Guimarey, Sofia K. Mylona, Xavier Paredes, María J.P. Comuñas, Josefa Fernández, Marc J. Assael, Viscosity-pressure dependence for nanostructured ionic liquids. Experimental values for butyltrimethylammonium and 1-butyl-3-methylpyridinium bis(trifluoromethylsulfonyl)imide, The Journal of Chemical Thermodynamics, Volume 121, 2018, Pages 27-38, ISSN 0021-9614, https://doi.org/10.1016/j.jct.2018.01.025.
NO This work was supported by the Spanish Ministry of Economy and Competitiveness and the Program European Regional Development Fund (CTQ2011-23925 and ENE2014-55489-C2-1-R). Moreover, this work was funded by the Xunta de Galicia (AGRUP2015/11, GRC ED431C 2016/001 and R2014/015). MD thanks AECID of Spain for the allocation of a MAEC-AECID grant and to the EMMAG Programme mobility. The authors gratefully acknowledge partial financial contribution from COST project CM1206 on “Exchange on Ionic Liquids”.
DS Minerva
RD 27 abr 2026