Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7606563 | Journal of Analytical and Applied Pyrolysis | 2017 | 8 Pages |
Abstract
The preparation of 4,4â²-dinitro-3,3â²-azofuroxan (3) was efficiently accomplished from synthesizing the key intermediate of 4-amino-3-azidocarboxyl-furoxan (1) and oxidizing the precursor 4,4â²-diamino-3,3â²-azofuroxan (2). The structure of 3 and its crystal density of 1.981 g cmâ3 were determined by single crystal X-ray diffraction studies. The crystal structure determination indicated that only 3 was obtained rather than its isomers 3,3â²-dinitro-4,4â²-azofuroxan (3â²), which consistent with the results of theoretical calculations. The comprehensive thermal decomposition behaviors were fully characterized by multiple heating methods, TG-DSC-MS and original temperature-dependent/FTIR coupling technique. In addition, the experimental detonation velocity of 3 was determined to be 9778 m sâ1 by using a developed method that only requires a small amount of samples on a network plate made of aluminum alloy, which is also well suited for other energetic compounds with high impact sensitivity (IS < 8 J), such as HMX, RDX and CL-20.
Related Topics
Physical Sciences and Engineering
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Authors
Tao Guo, Min Liu, Xiao-Chuan Huang, Zi-jun Wang, Shao-jun Qiu, Zhong-xue Ge, Zi-hui Meng,