“用水萃取乙酸乙酯溶液中的乙酸”实验设计的缺陷分析  

The Defects of the Experimental Design “Extracting Acetic Acid in the Ethyl Acetate via Water ”

作　　者：李东芳[1] 付渊[2] 李纯毅[2] 王志平[1] 

机构地区：[1]集宁师范学院化学系,内蒙古乌兰察布012000 [2]内蒙古化工职业学院,内蒙古呼和浩特010010

出　　处：《集宁师范学院学报》2014年第1期107-109,113,共4页Journal of Jining Normal University

摘　　要：该文对用水萃取乙酸乙酯溶液中乙酸的实验设计进行了详细的研究.该实验分层快、易操作,且经济、环保,作为训练学生的基本操作技能是可行的,但该实验设计存在一定的缺陷.实验结果表明,该实验设计会造成乙酸的萃取率偏高,同时在一定温度下,乙酸在乙酸乙酯与水中的分配系数逐渐降低,且变化幅度较大。In the paper the experimental design titled ＂Extracting Acetic Acid in the Ethyl Acetate via Water＂ as a solution was studied in detail. Although the experiment had such advantages as fast layering, easy operation, environment-protecting economy and feasibility as a basic skill to train students, there were some defects in its design. Experimental results showed that the experimental design would result in a higher rate of extraction of acetic acid, and that at a certain temperature, the partition coefficient of acetic acid in ethyl acetate and water was gradually reduced, and the magnitude of change was larger.

关 键 词：乙酸 乙酸乙酯 水 萃取 缺陷 

分 类 号：O6-3[理学—化学]