DENSITY, VISCOSITY AND EXCESS PROPERTIES OF BINARY MIXTURES OF PROTIC IONIC LIQUID (2-HDEAF, 2-HDEAA) + WATER AT DIFFERENT TEMPERATURES
| Autor: | Regiane Silva Pinheiro, Francisca Maria Rodrigues Mesquita, Rílvia Saraiva de Santiago-Aguiar, Filipe Xavier Feitosa, Hosiberto B. de Sant’Ana |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
density
Aqueous solution Materials science Atmospheric pressure General Chemical Engineering Binary number Thermodynamics lcsh:TP155-156 02 engineering and technology Negative behavior 010402 general chemistry 01 natural sciences excess properties 0104 chemical sciences Viscosity chemistry.chemical_compound 020401 chemical engineering chemistry Ionic liquid viscosity Formate 0204 chemical engineering lcsh:Chemical engineering Shrinkage protic ionic liquid |
| Zdroj: | Brazilian Journal of Chemical Engineering v.35 n.2 2018 Brazilian Journal of Chemical Engineering Associação Brasileira de Engenharia Química (ABEQ) instacron:ABEQ Brazilian Journal of Chemical Engineering, Vol 35, Iss 2, Pp 383-394 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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