%0 Journal Article %@ 01677322 %A Akbar, M.M. %A Murugesan, T. %D 2013 %F scholars:4051 %J Journal of Molecular Liquids %K Dynamic viscosities; Excess molar volumes; N-methyldiethanolamine; Refractive index data; Temperature range; Tetrafluoroborates; Viscosity data; Weak interactions, Density (specific gravity); Refractive index; Thermodynamic properties; Viscosity, Binary mixtures %P 54-59 %R 10.1016/j.molliq.2012.09.002 %T Thermophysical properties of 1-hexyl-3-methylimidazolium tetrafluoroborate hmimBF4 + N-methyldiethanolamine (MDEA) at temperatures (303.15 to 323.15) K %U https://khub.utp.edu.my/scholars/4051/ %V 177 %X Binary mixtures of 1-hexyl-3-methylimidazolium tetrafluoroborate hmimBF4 with N-methyldiethanolamine (MDEA) were prepared. Physical properties namely, density �, dynamic viscosity η and refractive index nD, of the binary mixtures were measured over a temperature range of 303.15 K to 323.15 K. The measured density and refractive index data were correlated as a function of concentration and temperature. Excess molar volumes VE were deduced from the experimental data. Excess molar volumes showed positive deviations over the entire range of concentrations and temperatures indicating a weak interaction between hmimBF4 and MDEA. Viscosity data for the binary mixtures were correlated by using the Kendall-Monroe model. © 2012 Elsevier B.V. All rights reserved. %Z cited By 32