Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

ABSTRACT

In the present study, the viscosity and refractive index of pure and aqueous 2-(methylamino) ethanol (MAE) and aminoehtylethanolamine (AEEA) and an aqueous blend of MAE+AEEA were measured in the temperature range from 293.15 K to 333.15 K with the interval of 5 K at atmospheric pressure. Amine content in aqueous mixtures varied from 0.05 to 0.30 weight fraction. The viscosity of pure components was correlated by Arrhenius type equation with average absolute deviation percentage (AAD %) of 1.87 and 2.42 for MAE and AEEA, respectively. Modified Vogel-Tamman-Fulcher (VTF) equation with AAD % of 1.343 was proposed to correlate the viscosity of pure AEEA. New equation with respect to temperature was also proposed to correlate the refractive index data of pure MAE and pure AEEA, respectively. Viscosity and refractive index data of aqueous MAE, AEEA and aqueous blend of MAE+AEEA were associated by newly proposed correlations and AAD % was found maximum 0.11 and 0.001 for viscosity and refractive index, respectively. Deviation in viscosity () and deviation in refractive index (nD) from ideal solution of aqueous MAE and AEEA were correlated by Redlich-Kister equation and the maximum standard deviation was calculated to be 0.091, 0.0012 for MAE and 0.114, 0.0011 for AEEA, respectively.