Volumetric and Viscometric Analysis of Aggregation Behavior in 2-(Methylamino)ethanol (MAE) + Dimethyl Sulfoxide (DMSO) Non-Aqueous Solutions

This study determined and correlated the density and viscosity of the 2-(methylamino)ethanol (MAE) - dimethyl sulfoxide (DMSO) non-aqueous solution over a temperature range of 298.15 to 323.15 K at atmospheric pressure. The effects of the mass fraction of MAE ( w 1 ), temperature ( T ) and CO 2 loading ( α ) on viscosity and density were demonstrated based on of experimental data and calculations. The excess molar volume ( V m E ) and viscosity deviation ( Δη ) were derived from the experimental data. Furthermore, the V m E and Δη were correlated by using the Redlich-Kister equation. The viscosity activation energy and CO 2 diffusion coefficient were calculated and analyzed by utilizing viscosity data. The activation parameters activation enthalpy (Δ Η* ) and activation entropy (Δ S* ) were determined using the measured viscosity and density data. This combined study provides insights into intermolecular interactions and transportation characteristics through the observed changes in viscosity and density with composition.