实验科学与技术2016，Vol.14Issue(6)：24-27,4.DOI:10.3969/j.issn.1672-4550.2016.06.007
乙醇-环己烷-水三元液液相平衡实验条件探索
Exploration the Experimental Conditions of Ethanol -Cyclohexane -Water System Ternary Liquid Phase Equilibrium
摘要
Abstract
With an ethanol -cyclohexane -water system to carry out a ternary liquid phase equilibrium determination experiment for undergraduate students,this paper analyses the feasibility and rationality of the experiment.Combined with the major experiment characteristics,many experimental details are intergated considered such as experimental equipment building,analysing methods et al to optimizate the experimental programme .Under different temperatures,we determine the solubility curve and balance connection line of ethanol -cyclohexane -water ternary system to ensure the optimal experimental condition.The results show that when the reaction temperature at 20℃,the experimental phenomenon in the reaction vessel can be observated clearly,as well as a stable experimental re-sults can be obtained,By later analysing and discussion of the experimental data,students can learn the calculation method of the dis-tribution coefficient K,the selectivity coefficient β,and the graphical plotting method of the Origin software.关键词
相平衡/溶解度曲线/平衡联结线Key words
phase equilibrium/solubility curve/balance connection line分类
化学化工引用本文复制引用
田文,吉俊懿,蒋炜,余徽..乙醇-环己烷-水三元液液相平衡实验条件探索[J].实验科学与技术,2016,14(6):24-27,4.基金项目
四川大学实验技术立项（2013－44）。 （）
