Abstract

Gas–water partition coefficients, Kw, and gas–solvent partition coefficients, Ks, have been determined for chlorodifluoromethane and for 1,1,1,3,3,3-hexafluoropropane by headspace analysis, using a very simple experimental procedure. These partition coefficients then yield water–solvent partition coefficients, Ps. Where comparisons can be made there is excellent agreement with literature values for Kw and Ps. The obtained values of Ks and Ps can be used to obtain physicochemical properties, or descriptors, for the refrigerants. Combination of these descriptors with previous equations we have developed enables partition coefficients to be obtained for a host of systems.

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