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笔者对苯溴代反应进行了大量的试验 ,并参考了一些有关资料 ,使实验在便于课堂操作的前提下达到了时间短 (3～ 5分钟 )、效果好、污染少的要求 .现将实验要点介绍如下 ,供同行参考 .1 .仪器装置 .基本装置同课本 .圆底烧瓶规格以球体容积 1 0 0～ 2 0 0毫升为宜 .烧瓶底必须干?
The author conducted a large number of experiments on the phenyl bromide reaction and referenced some relevant data to make the experiment meet the requirements of short time (3 to 5 minutes), good effect and less pollution on the premise of facilitating the classroom operation. The introduction is as follows, for reference by peers. 1. Instrumentation. The basic device is the same as the textbook. The size of the round-bottomed flask is 100 to 200 millimeters. Is the bottom of the flask dry?