Thermophysical Properties of Acetone or Methanol + n-Alkane (C9 to C12) Mixtures
Liquid−liquid equilibria for methanol + n-alkanes (C9 to C12) were determined in the temperature range (278.15 to 308.15 K), using a visual static method. Densities, refractive indices, and speeds of sound were also measured at 288.15, 298.15, and 308.15 K for acetone + n-alkane mixtures and at 298....
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Veröffentlicht in: | Journal of chemical and engineering data 2002-07, Vol.47 (4), p.887-893 |
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Hauptverfasser: | , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Liquid−liquid equilibria for methanol + n-alkanes (C9 to C12) were determined in the temperature range (278.15 to 308.15 K), using a visual static method. Densities, refractive indices, and speeds of sound were also measured at 288.15, 298.15, and 308.15 K for acetone + n-alkane mixtures and at 298.15 and 308.15 K for methanol + n-alkane mixtures to study the temperature influence on mixing phenomena. The results were used to model liquid−liquid coexistence and derived properties trend. The calculated values based on the UNIQUAC equation were found to be similar to those based on the NRTL model. The Prigogine−Flory−Paterson theory was applied to estimate the excess molar volumes and the UNIFAC group contribution model for phase equilibria. |
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ISSN: | 0021-9568 1520-5134 |
DOI: | 10.1021/je0103059 |