焰色反应传统演示方式效果不太明显,特别是作为演示实验,后排学生很难观察到明显现象。有人用喷雾的方法进行演示,但持续时间不长。改进后的实验用固体酒精作为原料,实验持续时间非常长,效果明显,对比强烈,有效地改进了焰色反应。 Flame color reaction traditional demonstration effect is not obvious, especially as a demonstration experiment, the back row of students is difficult to observe the obvious phenomenon. Some people use the spray method to demonstrate, but the duration is not long. The improved experiment with solid alcohol as a raw material, the experiment duration is very long, the effect is obvious, strong contrast, effectively improving the flame reaction.