Key words: supercritical solvent, homogeneous gas mixtures, concentration, compressibility factor, phase, phase transition, coexistence curve, critical parameters
Some results of experimental study of p — р — T relations of binary mixtures (water — nitrogen, water — hydrocarbon, water — alcohol and alcohol — hydrocarbon) in a wide range of parameters that includes critical and supercritical states are presented. Newly discovered features of such mixtures are important for the theory of solutions and should be accounted in technical computations. The feasibility of application of these mixtures to improve the efficiency effectiveness increase of various industrial processes is validated.