Determination of the Viscosity of the Ionic Liquids [bmim][PF6] and [bmim][TF2N] Under High CO2 Gas Pressure Using Sapphire NMR Tubes
- Dyson, Paul J. 1Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- Laurenczy, Gábor 1Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
Published in:
- Zeitschrift für Naturforschung B. - Walter de Gruyter GmbH. - 2008, vol. 63, no. 6, p. 681-684
English
The viscosities of the ionic liquids [bmim][PF6 ] and [bmim][TF2 N] (bmim = 1-methyl-3- butylimidazolium, TF2 N = bis(trifluoromethylsulfonyl)imide) have been determined under CO2 pressure at 298 K. The viscosity decreases from 381 to 23 cP for [bmim][PF6 ] without CO2 and for 2.17 molal CO2 solutions (mole fraction XCO ₂ = 0.381, 55 bar CO2 ), respectively. For [bmim][TF2 N] the viscosity decreases from 54 cP for the ionic liquid to 21 cP for a 1.61 molal solution of CO2 (mole fraction XCO ₂ = 0.403, 55 bar CO2 ).
- Language
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- English
- Open access status
- green
- Identifiers
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- DOI 10.1515/znb-2008-0614
- ISSN 1865-7117
- Persistent URL
- https://sonar.ch/global/documents/211323
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