Pressure-volume-temperature behavior of a mixture of difluoromethane and pentafluoromonochloroethane

Abstract

NaC! MolalityFigure 8. CaS04-Na2S04 phase diagram at 100°C. and 0.0-4.0 molal NaCI 8. At this temperature, all the salts are dehydrated, leaving only CaS04, CaSOvNaiSCL, and Na2S04.The solubility of anhydrite increases with salinity to a maximum above 2.0 molal NaCI and then remains relatively constant thereafter. The solubility of the other two salts decrease with increasing salinity.No hemihydrate was found at any of the studied conditions except possibly at 85°and 100°C. at the lower salinities. This phase appears to be a transient one between gypsum and anhydrite.The laboratory phase of the research was ably assisted