焰火在民用与军工等方面有广泛的用途。但迄今只有红、绿、黄和紫等有色火焰,深蓝色火焰尚未得到。本文利用光谱法对几种铜盐产生的蓝色火焰进行研究,分析了它们所产生的激发态分子的可见光谱特征,探讨了氧化剂、还原剂和铜盐本身等因素的影响。 Fireworks in civil and military and other aspects of a wide range of uses. But so far only red, green, yellow and purple colored flame, dark blue flame has not yet been obtained. In this paper, the blue flame produced by several copper salts was studied by spectroscopy. The visible spectra of the excited molecules produced by them were analyzed. The effects of oxidants, reductants and copper salts themselves were also discussed.