measurement of thermophysical properties of pure and mixture of alkanolamines from 288.15-323.15 k

density, viscosity and refractive index of pure, binary and ternary mixtures of diethanolamine (dea) and methyl diethanolamine (mdea) with water have been measured at different temperatures from 288.15 k to 323.15 k at atmospheric pressure. also, this study presents the effects of mixture composition and temperature upon these thermo- physical properties. to measure the density and refractive index, the amine mass percentages of binary and ternary aqueous solutions were between 5% to 40% and 40% to 80% respectively. for determining the kinematic viscosity, the amine mass percentages for binary aqueous solutions were 5% to 40%. the densities, refractive indexes, and viscosities of 22 binary and ternary mixtures were finally measured.