在讲解氯气性质时,首先需要制取氯气。收集时多采用排气取气法。由于大多数实验室和教室都没有通风设备,在制取过程中难免有大量的氯气逸入室内,大家都知道氯气是有毒的,不尽快排除,会直接影响教师和同学们的身心健康。我们对课本中的这一实验进行了改进,通过改进,可以大大的降低氯气向室内逸出的量。 When explaining the properties of chlorine gas, it is first necessary to make chlorine gas. Exhaust air extraction method is used when collecting. Since most laboratories and classrooms do not have ventilation equipment, it is inevitable that a large amount of chlorine escapes into the room during the preparation process. Everyone knows that chlorine is toxic and will not be eliminated as soon as possible, which will directly affect the physical and mental health of teachers and students. We have improved this experiment in textbooks, and through improvements, we can greatly reduce the amount of chlorine gas escaping into the room.