关于电化学的简单试验,在本刊内已先后讨论过三次。第一次就曾说过电化学的范围很广,在本栏内决不能做详尽的介绍。但是经过三期以来,一部份在这方面感到兴趣的读者或许表示欢迎,而一部份读者也许要感得累了,所以还是把这部份材料择要叙述,提前结束。前面说过,食盐溶液和水的电解,都是对于人生日用关系非常密切的重要工业,这里还要介绍 A simple test on electrochemistry has been discussed three times in this issue. The first time ever said that a wide range of electrochemical, in this column must not be an exhaustive introduction. However, after the third phase, some readers who are interested in this aspect may be welcome. Some readers may feel tired. Therefore, this part of material should be narratively chosen and ended prematurely. As mentioned earlier, the electrolysis of salt solution and water are all important industries that have a very close relationship with daily life