Density, viscosity and excess properties of binary mixtures of protic ionic liquid (2-HDEAF, 2-HDEAA) + water at different temperatures
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 extensi...
| Autores: | , , , , |
|---|---|
| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2018 |
| País: | Brasil |
| Recursos: | Universidade Federal do Ceará (UFC) |
| Repositório: | Repositório Institucional da Universidade Federal do Ceará (UFC) |
| Idioma: | inglês |
| OAI Identifier: | oai:repositorio.ufc.br:riufc/68536 |
| Acesso em linha: | http://www.repositorio.ufc.br/handle/riufc/68536 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Density Viscosity Excess properties Protic ionic liquid |
| Resumo: | 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. |
|---|