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许多化学反应必须在加热的条件下才能进行,加热是化学实验重要的基本操作之一。对不同热源及其使用方法的掌握,对不同反应加热方式的选择,直接关系到实验的安全与成败。因此,在中学化学实验过程中必须掌握各种热源的使用规则,明确不同反应的加热方式,以确保加热实验的顺利进行。一、中学化学实验常用热源中学化学加热实验常用的热源主要是酒精灯,另外还有酒精喷灯、煤油喷灯、电加热炉和红外线烘
Many chemical reactions must be carried out under heated conditions. Heating is one of the most important basic operations in chemical experiments. The mastery of different heat sources and their methods of use, the choice of different reaction heating methods, is directly related to the safety and success of the experiment. Therefore, in the process of chemistry experiment in middle school, it is necessary to master the rules of using various heat sources and clarify the heating methods of different reactions so as to ensure the smooth running of the heating experiment. First, the high school chemical experiments commonly used heat source High temperature chemical heat experiment commonly used in the heat source is alcohol lamp, in addition to alcohol burner, kerosene torch, electric heating furnace and infrared baking