【摘 要】
：
若采用教材中焰色反应的实验操作进行实验,酒精灯的火焰呈黄色,往往对学生观察焰色造成干扰,现象不明显,而且铂丝每次需要洗净后再灼烧,很麻烦。为了使实验操作简单,现象明显
【机 构】
：
河北省廊坊市第二中学 065000
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若采用教材中焰色反应的实验操作进行实验,酒精灯的火焰呈黄色,往往对学生观察焰色造成干扰,现象不明显,而且铂丝每次需要洗净后再灼烧,很麻烦。为了使实验操作简单,现象明显,笔者对实验进行了如下改进。
If the experimental experiment using the flame reaction of the teaching materials is performed, the flame of the alcohol lamp is yellow, which often causes interference to the student’s observation of the flame color, the phenomenon is not obvious, and the platinum wire needs to be washed and then burned, which is troublesome. In order to make the experiment simple and the phenomenon obvious, the author has made the following improvements to the experiment.
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