文献类型：期刊文献

中文题名：乙醇和环己烷液体混合物的内压

英文题名：The Internal Pressures of Ethanol and Cyclohexane Liquid Mixtures

作者：胡宇军[1];张锐[1];黑恩成[1];刘国杰[1]

机构：[1]华东理工大学化学系,上海200237

年份：1998

卷号：56

期号：5

起止页码：456

中文期刊名：化学学报

外文期刊名：Acta Chimica Sinica

收录：CSTPCD;;Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金资助项目(29676011)

语种：中文

中文关键词：乙醇;环己烷;内压;自缔合;液体混合物;混合物

外文关键词：ethanol, cyclohexane, internal pressure, modified van der Waal's model, selfassociation

摘要：测定了25～65℃温度范围内乙醇和环己烷液体混合物的热压力系数,它们都很好地遵守我们先前提出的修正van der Waals模型.从模型参数B/A^2,可以得到乙醇自缔合的破坏与浓度间的定量关系.混合物的内压不仅取决于两个纯组分的内压,而且还与相互作用参数A_(12)
The thermal pressure coefficients of ethanol and cyclohexane liquid mixtures over therange of temperature from 25℃ to 65℃ were mesaured. The modified van der Waals' model suggested by our previous work is also applicable to these mixtures satisfactorily. From the parameter of model, B/A2, 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.