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氯气具有强的氧化性,其水溶液具有漂白性和酸性。课堂演示实验中存在以下不足:(1)药品用量多,造成浪费;(2)使用仪器多,装置冗杂,操作麻烦;(3)实验时间长,影响教学进程;(4)实验时有氯气逸散,造成环境污染,影响师生健康。下面介绍一种密闭式氯气系列演示实验装置及其操作步骤。
Chlorine has strong oxidizing properties, and its aqueous solution is bleachable and acidic. There are the following deficiencies in the classroom demonstration experiment: (1) The amount of drugs used is too much to cause waste; (2) There are many instruments used, the devices are complicated and the operation is troublesome; (3) The experiment time is long and affects the teaching process; (4) There is chlorine escape during the experiment. Scattered, causing environmental pollution, affecting the health of teachers and students. The following describes a closed-type chlorine demonstration experiment device and its operating procedures.