The internal pressures of ethanol and cyclohexane liquid mixtures

Abstract

The thermal pressure coeficients of ethanol and cyclohexane liquid mixtures over the range of temperature from 25℃ to 65℃ were measured. The modified van der Waals' model suggested by our previous work is also applicable to these mixtures satisfactorily. From the parameter of model, B/A^2, a quantitative relationship between the destruction of self-association of ethanol and the concentration is obtained. It is found that the internal pressures of the mixtures depend not only on those of two pure components, but on the interaction parameter A12.

Key words: ETHANOL, LIQUID, MIXTURES, ASSOCIATION, CYCLOHEXANE, INTRINSIC PRESSURE

CLC Number:

O642

Cite this article

HU YUJUN;ZHANG RUI;HEI ENCHENG;LIU GUOJIE. The internal pressures of ethanol and cyclohexane liquid mixtures[J]. Acta Chimica Sinica, 1998, 56(5): 465-471.

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