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.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1998年第5期456-471,共16页
Acta Chimica Sinica
基金
国家自然科学基金资助项目(29676011)
关键词
乙醇
环己烷
内压
自缔合
液体混合物
混合物
ethanol, cyclohexane, internal pressure, modified van der Waal's model, selfassociation
