三氯化氮气体喷射自发分解实验研究
Experimental study on NCl3 spraying auto-decomposition
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摘要: 在气体流动管中对三氯化氮气体喷射自发分解的现象进行了初步实验研究。在一根长80 cm，直径4 cm的圆柱形石英玻璃管中，用喷嘴向气体流动管内喷射NCl3/He混合气体，观察到了NCl3喷射分解时的红色火焰。测量了火焰光谱并进行了归属，认为该光谱是Cl2(B→X)辐射跃迁。NCl3的喷射自发分解本质上是激波诱导发生的，即分子的动能转化为分子内能而引起的，生成的Cl原子及NCl2自由基与NCl3分子反应，从而得到持续燃烧火焰。实验结果表明了NCl3自发分解反应可代替放电或燃烧作为Cl原子的来源。
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关键词:
- 三氯化氮 /
- 自发分解 /
- 全气相碘原子化学激光
Abstract: The spraying auto-decomposition of NCl3 was preliminarily investigated in a cylindrical gas flow tube. The red flame of NCl3 auto-decomposition by spraying was observed and its spectrum was measured. The spectrum was attributed to Cl2(B→X) transition. The decomposition mechanism of NCl3 molecule was discussed. It was believed that the preliminary decomposition of NCl3 was induced by shockwave and then Cl and NCl2 radicals produced reacted with NCl3 to give sustained flame. The experimental results show that NCl3 auto-decomposition can produce a large amount of radicals to replace discharge or combustor as the source of chlorine atom.-
Key words:
- nitrogen trichloride /
- auto-decomposition /
- all gas-phase iodine laser
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