大学化学 >> 2023, Vol. 38 >> Issue (1): 206-212.doi: 10.3866/PKU.DXHX202202003

化学实验 上一篇    下一篇

基础有机化学实验教学中的操作细节——常压蒸馏教学实践经验谈

李芳1, 赵卫光2,*()   

  1. 1 南开大学化学学院, 化学国家级实验教学示范中心, 天津 300071
    2 南开大学化学学院, 元素有机化学研究所, 天津 300071
  • 收稿日期:2022-02-05 录用日期:2022-04-15 发布日期:2022-04-25
  • 通讯作者: 赵卫光 E-mail:zwg@nankai.edu.cn

Operation Details in Teaching Basic Organic Chemistry Experiments: Practical Technique of Atmospheric Distillation

Fang Li1, Weiguang Zhao2,*()   

  1. 1 National Demonstration Center for Experimental Chemistry Education, College of Chemistry, Nankai University, Tianjin 300071, China
    2 State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
  • Received:2022-02-05 Accepted:2022-04-15 Published:2022-04-25
  • Contact: Weiguang Zhao E-mail:zwg@nankai.edu.cn

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摘要：

“致广大而尽精微”是成事之道。常压蒸馏是有机化学实验的基本操作。在文献的查询过程中发现，无论教材还是文章，对常压蒸馏的一些操作细节都没有进行深入的讨论。很多学生，包括部分教师对蒸馏操作的细节都存在误区。根据多年的有机合成实践经验，对从仪器的安装、使用方法到蒸馏操作全过程中的细节和常犯的错误进行详细的解析，与同行共同探讨，使学生快速掌握蒸馏操作技巧。

关键词: 常压蒸馏, 基本操作, 教学

Abstract:

The devil is in the details. Although atmospheric distillation is a basic purification technique in organic chemistry, a literature search on the subject revealed that many practical details of the process are not explained in depth, whether in textbooks or articles. As a result, many students and even some teachers harbor misconceptions about distillation techniques. Based on knowledge acquired from years of practical experience in organic synthesis, this paper presents these missing details as well as common mistakes encountered throughout the distillation process, from the setup and use of the lab equipment to the distillation itself. It is hoped that this paper will facilitate fruitful discussions with peers and help students master distillation in the lab.

Key words: Atmospheric distillation, Basic operation, Teaching