Studies on Energetic Compounds Part 23: Preparation, Thermal and Explosive Characteristics of Transition Metal Salts of 5‐Nitro‐2,4‐Dihydro‐3H‐1,2,4‐Triazole‐3‐One (NTO)
Studies on Energetic Compounds Part 23: Preparation, Thermal and Explosive Characteristics of Transition Metal Salts of 5‐Nitro‐2,4‐Dihydro‐3H‐1,2,4‐Triazole‐3‐One (NTO)
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DOI：
10.1002/1521-4087(200203)27:1
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发表时间：
2002-03
期刊：
影响因子：
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通讯作者：
Gurdip Singh;I. Kapoor;S. Felix;J. Agrawal
中科院分区：
文献类型：
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作者：
Gurdip Singh;I. Kapoor;S. Felix;J. Agrawal
合成并表征了5-硝基-2，4-二氢-3H-1，2，4-三唑-3-酮的5种过渡金属盐[M（NTO）n·mH 2 O，其中M分别为Ag，Hg，Cd，Cr，Fe，n= 1，2，2，8，2]（以下分别命名为AgNTO，HgNTO，CdNTO，CrNTO和FeNTO）.用TG、DTA研究了它们的热分解过程，并从爆炸延迟、撞击感度和摩擦感度等方面研究了它们的爆炸行为。利用非等温热重数据推导了热分解的动力学参数，并提出了热分解机理。似乎脱水发生之前的NO2和随后的环破裂产生金属氧化物的演变。另一方面，AgNTO产生金属银。在HgNTO的情况下，脱水分两步发生：每一步失去一个分子。所有的盐对冲击不敏感，同时对高达360 N的摩擦不敏感。
Five transition metal salts of 5-nitro-2,4-dihydro-3H-1,2,4-triazole-3-one, [namely M(NTO)n⋅mH2O where M is Ag, Hg, Cd, Cr, Fe where n=1,2,2,3,3 and m=1,2,2,8,2 respectively] were prepared and characterized (hereafter these compounds will be named as AgNTO, HgNTO, CdNTO, CrNTO and FeNTO, respectively). Their thermal decomposition was investigated by TG, DTA whereas explosive behaviour has been studied in terms of explosion delay, impact and friction sensitivities. Further, kinetic parameters have been derived using non-isothermal TG data and mechanism of thermolysis has also been proposed. It seems that dehydration takes place prior to the evolution of NO2 and the subsequent ring rupture yielding metal oxide. AgNTO on the other hand yields metallic silver. Dehydration in the case of HgNTO occurs in two steps: at each step one molecule is lost. All the salts are insensitive to impact and at the same time insensitive to friction up to 360 N.