氢气燃烧时,由于尖咀玻管是由钠玻璃制成的,所以火焰呈黄色,难以观察到淡蓝色火焰。我们分别用了以下两种装置,均可较清楚地观察到氢气燃烧时的淡蓝色火焰。第一种是用普通圆殊笔的金属头,套在 When hydrogen gas is burned, since the tip tube is made of soda glass, the flame is yellow and it is difficult to observe the pale blue flame. We used the following two devices, respectively, can be more clearly observed when burning hydrogen light blue flame. The first type is a metal head with an ordinary round pen.