Thermophysical Characterization of Ionic Liquids Able To Dissolve Biomass
authors Freire, MG; Teles, ARR; Rocha, MAA; Schroder, B; Neves, CMSS; Carvalho, PJ; Evtuguin, DV; Santos, LMNBF; Coutinho, JAP
nationality International
journal JOURNAL OF CHEMICAL AND ENGINEERING DATA
keywords HEAT-CAPACITIES; COMPOSITION DEPENDENCE; ATMOSPHERIC-PRESSURE; BINARY-MIXTURES; SMALL SAMPLES; CELLULOSE; WATER; TEMPERATURE; DISSOLUTION; DENSITY
abstract Among new potential solvents for lignocellulosic materials, ionic liquids (ILs) are attracting considerable attention. Hence, the knowledge of the thermophysical properties of such fluids is essential for the design of related industrial processes. Therefore, in this work, a set of thermophysical properties, namely, density, viscosity, and refractive index, as a function of temperature, and isobaric thermal expansivity and heat capacities at a constant temperature, were determined for eight ionic liquids with the 1-ethyl-3-methylimidazolium cation combined with the following anions: acetate, methylphosphonate, methanesulfonate, trifluoromethanesulfonate, dicyanamide, thiocyanate, tosylate, and dimethylphosphate. Imidazolium-based HA were chosen since these are the most studied ionic fluids in biomass dissolution approaches, while a large array of anions was investigated because it was already demonstrated that it is the IL anion that mainly governs the dissolution.
publisher AMER CHEMICAL SOC
issn 0021-9568
year published 2011
volume 56
issue 12
beginning page 4813
ending page 4822
digital object identifier (doi) 10.1021/je200790q
web of science category Thermodynamics; Chemistry, Multidisciplinary; Engineering, Chemical
subject category Thermodynamics; Chemistry; Engineering
unique article identifier WOS:000297608800075

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