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为了使学生在课外能巩固所学的化学知识,以及获得实验方面的技巧,我曾指导学生在课外活动中制取了酚醛塑胶和苯胺。同时我认为通过这些实验,是可以增加同学们一些有机工业生产的基础知识,这对贯彻基本生产技术教育,是有一定的意义的。现把我们实际的制法说明如下:(曾参考茨维奇科夫有机化学实验)。 (一)制取酚醛塑胶:当学生们学习了苯酚和甲醇的教材后,已知道它们是制造塑胶的原
In order to enable students to consolidate their learned chemistry and to acquire experimental skills after class, I have guided students to prepare phenolic and aniline for extra-curricular activities. At the same time, I think that through these experiments, it is possible to increase students’ basic knowledge of some organic industrial production. This is of some significance to implementing basic production technology education. Now we explain the actual system of law are as follows: (Reference Zwickichkov organic chemistry experiment). (A) the preparation of phenolic plastic: When students learn the teaching materials of phenol and methanol, they know that they are the original plastic