Density and Viscosity of Aqueous Solutions of (<i>N</i>-Methyldiethanolamine + Monoethanolamine), (<i>N</i>-Methyldiethanolamine + Diethanolamine), (2-Amino-2-methyl-1-propanol + Monoethanolamine), and (2-Amino-2-methyl-1-propanol + Diethanolamine)

Abstract

The densities and viscosities of aqueous blends of N-methyldiethanolamine (MDEA) and 2-amino-2-methyl-1-propanol with monoethanolamine (MEA) and diethanolamine (DEA) have been measured at (25, 30, 35, 40, 45, and 50) °C. The total amine strength in the solution was kept at 30 mass % in view of recent interest in using concentrated amine solutions in gas treating. Correlations for the density and viscosity of the ternary mixtures are presented.