MEASUREMENT OF ACTIVITY-COEFFICIENTS AT INFINITE DILUTION USING DIFFERENTIAL EBULLIOMETRY AND NON-STEADY-STATE GAS-LIQUID-CHROMATOGRAPHY

被引：39

作者：

DALLINGA, L ^{[1
]}

SCHILLER, M ^{[1
]}

GMEHLING, J ^{[1
]}

机构：

[1] UNIV OLDENBURG,LEHRSTUHL TECHN CHEM,POSTFACH 2503,W-2900 OLDENBURG,GERMANY

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 1993年 / 38卷 / 01期

关键词：

D O I：

10.1021/je00009a037

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Differential ebulliometry and non-steady-state gas-liquid chromatography have been used to measure activity coefficients at infinite dilution for 31 binary systems containing alkanes, ketones, and alcohols over the temperature range 303-343 K. A comparison between the results obtained with these two methods shows that differential ebulliometry provides more reliable results for the systems with a relative volatility lower than 15. Non-steady-state gas-liquid chromatography can however readily be used as an alternative to conventional gas-liquid chromatography for the measurement, of activity coefficients at infinite dilution in low-boiling solvents.

引用

页码：147 / 155

页数：9

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