Authors: Félix M Gaciño María J P Comuñas Josefa Fernández Sofia K Mylona Marc J Assael
Publish Date: 2014/06/01
Volume: 35, Issue: 5, Pages: 812-829
Abstract
The aim of this paper is to examine the application of a hardsphere scheme to the correlation and prediction of the viscosity and thermal conductivity of ionic liquids Ionic liquids present an excellent case because of their high viscosity It was found that regardless of the fact that the scheme had to be extended by orders of magnitude it was still an excellent scheme for the correlation and prediction of the properties of these liquids this fact is attributed to its theoretical basis A database of 461 viscosity and 170 thermalconductivity measurements for 19 ionic liquids was considered The average absolute deviation was 231 for the viscosity and 315 for the thermal conductivity while the expanded uncertainty at the 95 confidence level was 46 and 63 respectively Moreover if the thermalconductivity roughness factor is allowed to be temperature dependent then the average absolute deviation was reduced to 091 for the thermal conductivity and the expanded uncertainty at the 95 confidence level to 182 As the scheme requires knowledge of the density 1070 measurements of density were employed to derive a Taittype equation for every ionic liquid consideredThe authors gratefully acknowledge partial financial contribution from COST project CM1206 on “Exchange on Ionic Liquids” FMG MJPC and JF acknowledge the support from Ministry of Economy and Competitiveness Spain through the project CTQ201123925
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