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Synthesis, crystal structure and thermal behavior of magnesium 5,5′-bistetrazole-1,1′-diolate hexahydrate complex
Journal of Energetic Materials ( IF 1.325 ) Pub Date : 2020-05-18 , DOI: 10.1080/07370652.2020.1762801
Wang Xiaojun; Wang Na; Yang Yanpeng; Jin GuoLiang; Li Zhouting; Wang Xia; Lu Zhiyan

A new energetic green burning rate catalyst, magnesium 5,5′‒bistetrazole‒1,1′‒diolate hexahydrate complex ([Mg(BTO)(H2O)6], 1) was synthesized based on 5,5′‒bistetrazole‒1,1′‒diolate dehydrate (BTO, 2) by the metathesis reaction, and it was characterized by FTIR spectroscopy, elemental analysis (EA), Scanning Electron Microscopy (SEM) and single X-ray diffraction. The thermal decomposition processes of magnesium complex 1 and compound 2 were studied utilizing the TG‒DTA and TG‒MS technologies. Moreover, the sensitivity tests were carried out to evaluate the stability of compound 1 and compound 2. Besides, the DSC was used to evaluate the catalytic effect of magnesium complex 1 on thermal decomposition of cyclotrimethylene trinitramine (RDX), cyclotetramethylene tetranitramine (HMX), hexanitrohexaazaisowurtzitane (CL‒20) and dihydroxylammonium 5,5′-bistetrazole −1,1′-diolate (TKX‒50). The thermal behaviors indicate that the gaseous products such as NO, CO, N2 are checked from the decomposition of the complex at 320°C. Sensitivity results show that compound 1 is more insensitive to mechanical stimuli than compound 2. The results from DSC and the target line method analyses indicate that [Mg(BTO)(H2O)6] have no effect on the thermal decomposition of RDX, HMX, CL‒20 except for TKX‒50.
更新日期:2020-05-18

 

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