Products of slow thermal decomposition and fast therlnal explosion of α-Pb(N3)2 were detected by a time-flight mass spectrometer.Different mechanisms of these two reactions vvere determined.In slow thermal decomposition of -Pb(N3)2 ,the first step is excitation of ther π-electron in azide ion to form an azide radical.Then nitrogen gas is formed through bimolecular decomposition of azide radicals,which is the ratecontrolling step in the whole process.In thermal explosion of α-Pb(N3)2 products are nitrogen atom and nitrogen molecule.Formed from simultaneous breakdown fo π-and ó boud in-N3,because of the high energy released in the reaction system.
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劳允亮,李振煜.α-Pb(N3)2热分解和热爆炸机理的实验与论证[J].含能材料, 1994, 2(2):1-6. Lao Yun-liang, Li Zhen-yu. VERIFICAT1ON OF MECHANISM FOR THERMAL DECOMPOSITION AND THERMAL EXPLOSION OF α-Pb(N3)2[J]. Chinese Journal of Energetic Materials, 1994, 2(2):1-6.