The surface tension of aqueous solutions of methanol, ethanol, 1-propanol, and 2-propanol was measured over the entire concentration range at temperatures of 20-50 °C. The experimental values were correlated with temperature and with mole fraction. The maximum deviation was in both cases always less than 3%.

The surface tension of aqueous solutions of monoethanolamine, 2-amino-2-methyl-1-propanol, and monoethanolamine + 2-amino-2-methyl-1-propanol was measured at temperatures from 25 °C to 50 °C. The concentration ranges were 0−100 mass % monoethanolamine and 2-amino-2-methyl-1-propanol, and for tertiary mixtures 50 mass % total amine concentration (the concentration range for each amine was 0−50 mass %). The experimental values were correlated with temperature and mole fraction. The maximum deviation was in both cases always less than 0.5%.

The surface tensions of aqueous solutions of formic acid, acetic acid, and propionic acid were measured over the entire concentration range at temperatures (20 to 50) °C. The experimental values were correlated with temperature and mole fraction. Maximum deviations were in both cases always less than 1%.

Densities and kinematic viscosities of aqueous ternary solutions of 2-(methylamino)ethanol and 2-(ethylamino)ethanol with diethanolamine, triethanolamine, N-methyldiethanolamine, or 2-amino-1-methyl-1-propanol were measured at temperatures from (298.15 to 323.15) K. The total amine concentration was held constant at 50 mass %, and the (MAE or EAE)/(DEA, TEA, MDEA, or AMP) mass % ratio was varied from 0/50 to 50/0, in 10 mass % steps. The experimental values were correlated with temperature and mole fraction.