Abstract
Imidazolium-based ionic liquids (ILs) are widely used in bio-chemical processes for biofuel production. Ionic liquids always possess high viscosity that would impede the dissolution process of biomass and decrease the transfer rate. In this work, four organic solvents of N,N-dimethylacetamide (DMA), N,N-dimethylformamide (DMF), dimethyl sulfoxide (DMSO), and pyridine (PYR) are chosen as the diluent to improve the properties of IL, namely, 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc]) that shows promise for biofuel process in recent studies. The experimental density and viscosity of the binary mixtures are determined to quantitatively evaluate the effects of organic solvents on IL. The thermal expansion coefficient is derived from the experimental data. The excess properties are calculated to study the molecular interaction.
Published Version
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