摘要
对有机化学实验"苯乙酮的制备"的实验方法进行了改进。在后处理过程中,用滴加冰水混合物并加以搅拌来代替用盐酸处理。在萃取过程中,采用乙酸乙酯代替苯。在纯化过程中,采用快速柱层析来代替减压蒸馏。改进后的方法能减少有毒试剂的使用,降低了对环境的污染,提高了学生的动手能力。
The preparation methods of acetophenone in organic chemistry experiment were improved. During the after-treatment, adding ice-water mixture together with stirring replaced adding hydrochloric acid. During the extraction process, ethyl acetate replaced poisonous ben- zene. During the purification process, flash chromatography replaced distillation under reduced pressure. The improvement can reduce the usage of poisonous reagent and environmental pollu- tion, and enhance students＇ manipulative ability and experiment skill.
作者
李志伟
谌其亭
李江胜
宁静恒
张秀礼
欧阳楚豪
周攀
LI Zhi-Wei;SHEN Qi-Ting;LI Jiang-Sheng;NING Jing-Heng;ZHANG Xiu-Li;OUYANG Chu-Hao;ZHOU Pan(School of Chemistry and Biological Engineering,Changsha University of Science ＆ Technology,Changsha 410114,China)
出处
《化学教育（中英文）》
CAS
北大核心
2018年第18期32-34,共3页
Chinese Journal of Chemical Education
基金
湖南省普通高等学校教学改革研究项目(湘教通(2015)291号)
长沙理工大学研究生教研教改课题(JG2016YB07)
关键词
有机化学实验教学
苯乙酮
实验改进
organic chemistry experiment teaching
acetophenone
experiment improvement
