DENSITIES, EXCESS MOLAR VOLUMES, AND PARTIAL MOLAR VOLUMES FOR BINARY-MIXTURES OF WATER WITH MONOETHANOLAMINE, DIETHANOLAMINE, AND TRIETHANOLAMINE FROM 25-DEGREES-C TO 80-DEGREES-C

We have measured densities of binary mixtures of water with monoethano lamine (MEA), diethanolamine (DEA), and triethanolamine (TEA) over the full range of compositions and over the temperature range from 25 to 80-degrees-C. Results of these measurements have been used in calculat ing excess molar volumes and partial molar volumes. Knowledge of the v olumetric properties of these mixtures is useful in connection with in dustrial treatment of acidic gases, derived excess molar volumes and p artial molar volumes can be used as a basis for understanding some of the molecular interactions in water-organic mixtures.