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Title in Portuguese: Density, viscosity and excess properties of binary mixtures of protic ionic liquid (2-HDEAF, 2-HDEAA) + water at different temperatures
Author: Pinheiro, Regiane Silva
Mesquita, Francisca Maria Rodrigues
Feitosa, Filipe Xavier
Sant'Ana, Hosiberto Batista de
Aguiar, Rílvia Saraiva de Santiago
Keywords: Density
Excess properties
Protic ionic liquid
Issue Date: 2018
Publisher: Brazilian Journal of Chemical Engineering
Citation: FEITOSA, F. X. et al. Density, viscosity and excess properties of binary mixtures of protic ionic liquid (2-HDEAF, 2-HDEAA) + water at different temperatures. Brazilian Journal of Chemical Engineering, vol. 35, n. 2, p. 383-394, abr./jun. 2018. DOI: 10.1590/0104-6632.20180352s20160280
Abstract: Over the last decade, ionic liquids (IL) have attracted considerable attention for their potential to replace traditional volatile organic solvents due to their well-known physico-chemistry properties. This is an important topic for industrial applications today, and have been the subject of extensive literature studies. Nevertheless, there is still a lack of experimental thermodynamics data on aqueous mixtures, i.e., ionic liquids + water, especially volumetric and transport properties. These data could provide essential information about interactions and molecular phenomena in such mixtures. To investigate volumetric and transport properties for ionic liquids + water, density and viscosity data of the protic ionic liquids 2-hydroxydiethanolamine formate (2-HDEAF), 2-hydroxydiethanolamine acetate (2-HDEAA), water and their binary mixtures were measured at T = (293.15 to 343.15) K and atmospheric pressure. Excess molar volumes and deviation of viscosity were computed from experimental density and viscosity values and were fit to the Redlich-Kister equation. We observed a negative behavior for both ionic liquids + water mixtures that can be attributed to a shrinkage of the mixtures.
metadata.dc.type: Artigo de Periódico
ISSN: 1678-4383
Appears in Collections:DEQ - Artigos publicados em revista científica

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