Densities and Viscosities for Binary Mixtures ofN-Methyldiethanolamine + Triethylene Glycol Monomethyl Ether from 25 °C to 70 °C andN-Methyldiethanolamine + Ethanol Mixtures at 40 °C

Abstract

This paper reports the measured values of the density and viscosity of binary mixtures of N-methyldiethanolamine (MDEA) and triethylene glycol monomethyl ether (TEGMME) at five temperatures in the range 25 °C to 70 °C over the whole concentration range. We also report the density and viscosity of the binary mixture MDEA + ethanol at 40 °C. The results are compared with data for aqueous mixtures and other alkanolamines when these are available. The derived excess molar volumes and viscosity deviations were correlated as a function of composition. The Grunberg−Nissan interaction energy constants are also reported.