Abstract

Densities of binary mixtures of butyronitrile with dimethylsulfoxide and diethylsulfoxide are measured throughout the range of concentrations and in the temperature range of 298.15–323.15 K at ambient pressure. Volumetric parameters, the parameters of the Redlich–Kister equation, and the standard deviations of the excess molar volumes are calculated. Deviation of the behavior of these solutions from ideal is explained by the presence of competing homo- and hetero-molecular interactions, and by the effect the length of the hydrocarbon chain of sulfoxides has on the values of volumetric parameters.

中文翻译：

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丁腈-二甲亚砜和丁腈-二乙亚砜二元混合物的体积特性

摘要

丁腈与二甲基亚砜和二乙基亚砜的二元混合物的密度在整个浓度范围内以及在环境压力下 298.15–323.15 K 的温度范围内进行测量。计算体积参数、Redlich-Kister 方程的参数和过量摩尔体积的标准偏差。这些溶液的行为与理想值的偏差是由于存在竞争性的同分子和异分子相互作用，以及亚砜烃链的长度对体积参数值的影响。