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Ternary and Quaternary Liquid−Liquid Equilibria for the Water + Cyclohexane + Ethyl Acetate and Water + Cyclohexane + Ethyl Acetate + Acetic Acid Systems at the Temperature 298.15 K

2000; American Chemical Society; Volume: 45; Issue: 4 Linguagem: Inglês

10.1021/je990327j

1520-5134

Kazuhiro Tamura, N Morishita, Toshiro Yamada,

Chemical and Physical Properties in Aqueous Solutions

The experimental ternary and quaternary liquid−liquid equilibrium results are reported for the water + cyclohexane + ethyl acetate and water + cyclohexane + ethyl acetate + acetic acid systems at 298.15 K. The ternary results were correlated by using the extended UNIQUAC model with binary and ternary parameters obtained in fitting the model to binary phase equilibria and ternary liquid−liquid equilibrium tie-lines. The quaternary results were predicted using the binary and ternary parameters and further compared with those reproduced by using additional quaternary parameters.