抽滤瓶在制取二氧化碳中的妙用

The miraculous use of suction flask in the preparation of carbon dioxide

在中学以及大学无机化学实验中,实验室制取二氧化碳的实验具有很重要的地位,但教材中采用传统启普发生器作为气体发生装置,在实际的操作过程中存在一些严重的不足之处。因此对实验装置进行改进是非常有必要的。使用带磨口的抽滤瓶代替启普发生器,装置的气密性得到了极大地提高,二氧化碳气体产生平稳、顺畅,盐酸以及大理石的后续回收也非常容易。另外,此装置也可以应用于其它类似条件下气体的制备。

In the chemistry experiment course of middle school and university level,the Kipp’s apparatus was traditionally used for the preparation of carbon dioxide.However,during the real experiment,there are some obvious disadvantages of Kipp’s apparatus.The use of suction flask to replace Kipp’s apparatus has improved the air-tightness of the apparatus greatly.Carbon dioxide was prepared smoothly.The recycle of hydrogen chloride and calcium carbonate was very easy after the preparation experiment.Additionally,this new apparatus can be used for other gas preparation with similar reaction condition.