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1956/57学年度的化学教学大纲规定在十年级讲授电解法生产烧碱和碱金属的过程。在十年级新化学课本中,简要地叙述了电化生产金属钠与苛性钠的基本原理,但向学生介绍这些生产过程的教学法还很少研究,因而予教师的工作以相当大的困难。在本文中,我们将在“金属”一章教学实践的基础上,对向学生讲授钠与苛性钠生产过程的教学法,提出几点建议。大家知道,钠可由电解熔融氯化钠或苛性
The Chemistry Syllabus for the 1956/57 Academic Year provides for the teaching of the electrolytic production of caustic soda and alkali metal in the tenth grade. In the tenth grade new chemistry textbook, the rationale for the electrochemical production of metallic sodium and caustic soda is briefly described. However, teaching methods to introduce students to these production processes is seldom studied, and thus presents considerable difficulties for teachers in their work. In this article, we will give some advice on how to teach students the process of sodium and caustic soda production based on the teaching of “Metal” chapter. As we all know, sodium can be melted by electrolysis of sodium chloride or caustic