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在初中化学第三章《碳》第二节的教学中,有木材的干馏制取木炭的演示实验。若按教材中提供装置去做,需较长时间,且实验装置繁琐。我对此做了以下改进,望同行们指正。
In the teaching of the second section of the third chapter of the chemistry of junior middle school chemistry, there is a demonstration experiment for the charcoal production from the dry distillation of wood. If the device is provided by the textbook, it takes a long time and the experimental device is cumbersome. I have made the following improvements to this and hope that my colleagues correct me.