The critical properties of binary mixtures containing carbon dioxide: Experimental data

Abstract

Results are given of comprehensive analysis of the behavior of critical lines of binary mixtures which have CO2 as one of the components. Methods are considered of measuring the critical properties T C , P C , and ρ C of pure substances and mixtures and the accuracy of these methods. Data from different sources on the critical properties of CO2 + soluble substance (SS) binary mixtures are compared for determining the quality and reliability of some or other results and their consistency, and recommendations are given for using these results for scientific and technological purposes. The effect is discussed of the shape of critical lines of CO2 + SS binary mixtures on the behavior of their phase diagrams. The classification of phase diagrams is given depending on the behavior of critical lines, and the effect of the properties of SS (shape, size of molecules, and specific interactions between CO2 and SS molecules) on the behavior of critical lines is investigated.