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氯化氢的喷泉实验是中专化学“卤素及其重要化合物的性质”实验教学中的一个很重要的实验,通过该实验可以观察到氯化氢在水中的溶解现象。但是,在实验过程中我们发现,该实验的操作尚有几点不足,需要改进。 (1)用通常的方法(常压下向上排气集气法)向烧瓶中充入氯化氢气体时,不能杜绝氯化氢向空气中扩散,会造成环境污染。
The fountain experiment of hydrogen chloride is a very important experiment in the experimental teaching of secondary chemistry chemistry “the properties of halogen and its important compounds”. The hydrogen chloride can be observed in water by the experiment. However, during the experiment, we found that there are still some deficiencies in the operation of the experiment, which needs improvement. (1) When the hydrogen chloride gas is charged into the flask by the usual method (up-evacuation method at atmospheric pressure), hydrogen chloride can not be prevented from diffusing into the air, causing environmental pollution.