摘要
本文利用双波长紫外分光光度法测定了多种组成的芳烃混合物在水相的溶解度,发现有机相中共存物质的组成及相互作用对它们各自的水溶解度具有重要影响。实验表明:液-液混合物表现出接近理想溶液的溶解行为;固-固混合物的溶解行为比较复杂,结构相近的固-固混合物的溶解行为接近理想溶液,而结构不相近的固-固混合物中各组份的溶解度与纯物质的溶解度接近;完全相溶的液-固混合物经固/液逸度比校正后,表现出接近理想溶液的溶解行为,本文还利用UNIFAC官能团法估算了芳烃混合物的溶解度,理论预测和实验值吻合很好。
The solubility of several aromatic mixtures in water have been measured by dual wavelength spectrophotometry. It was found that the solubility of each component in water was significantly affected by the composition of organic phase and interaction between the components.The experimental results have shown that the mixtures of liquids were near ideal solution.However, solid-solid mixtures behave much more complex. The mixtures of structually similar solids behave near ideal solution, while the mixtures of structually unsimilar solids tend to behave independently of the composition of organic phase. The mixtures of completely soluble solids and liquids were near ideal after calibration through solid/liquid fuga-cities ratio.The solubility of aromatic mixtures in water were also estimated using UNIFAC method. The calculated results were in good agreement with the experimental values.
出处
《环境化学》
CAS
CSCD
北大核心
1992年第4期7-12,共6页
Environmental Chemistry
基金
国家自然科学基金
关键词
水溶解度
活度系数
芳烃混合物
solubility, activity coefficient,UNIFAC method, aro-m-taicmixtures
