Issue 7, 1981

Analysis of coexistence-curve data for binary mixtures

Abstract

Earlier attempts by others to mathematically describe coexistence-curve data from binary mixtures are reviewed and the empirical nature of the functions is noted.

A statistically improved procedure to determine the quality of the fit of any particular function to a given set of experimental data is proposed. This procedure is then applied to determine the extent to which a number of empirical formulations accurately describe the partial miscibility observed in five experimental systems, namely: (1) isobutyric acid + water; (2)3He +4He; (3) neon + ammonia; (4) titanium tetrabromide + sulphur dioxide and (5) lead + zinc.

It is concluded that none of the functions examined can provide a close fit over a wide range of composition against temperature for all the systems examined.

Article information

Article type
Paper

J. Chem. Soc., Faraday Trans. 2, 1981,77, 1061-1074

Analysis of coexistence-curve data for binary mixtures

M. R. Viner and R. W. Smith, J. Chem. Soc., Faraday Trans. 2, 1981, 77, 1061 DOI: 10.1039/F29817701061

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