Density Measurements of Unloaded and CO2-Loaded 1-Dimethylamino-2-propanol at Temperatures (298.15 to 353.15) K

In the first part of this work, densities of aqueous 1-dimethylamino-2-propanol (1DMA2P) at different mass fractions and temperatures are presented. A linear relation between densities and temperatures was found, and the thermal expansion coefficient values were established. Subsequently a second order Redlich–Kister polynomial equation was employed to correlate excess molar volumes of the mixtures. In the second part of this work, densities of CO2-loaded 1DMA2P solutions at 0.30 and 0.55 mass fractions were measured at increasing temperatures and CO2 loadings. The data were then modeled, and evaluation with the estimated density values is discussed.