Insensitive explosive Page: 4 of 11
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BACKGROUND OF THE INVENTION
This invention relates to the field of chemistry and,
more particularly, to explosives. This invention is the
result of a contract with the Department of Energy
05 (Contract No. W-7405-ENG-36).
It is desirable to use explosives in weapons and other
applications which are less sensitive than the common
explosives RDX, TNT, and HMX, since there have been
catastrophic explosions of munitions which use these
10 compounds. Triaminotrinitrobenzene (TATB) and
3-nitro-1,2,4-triazol-5-one (NTO) are recently developed
insensitive explosives which do not provide sufficient
performance for certain applications. In preliminary
characterization and sensitivity testing, it has been found
15 that 3-amino-5-nitro-1,2,4-triazole (ANTA) is a promising
insensitive high explosive. The detonation velocity of
ANTA, calculated at crystal density, is higher than that of
TATB. ANTA will be useful for providing chemical energy by
means of detonation of ANTA. It is thermally stable up to
20 about 2500C and does not explode upon impact. The prior
art process of synthesizing ANTA involves the acetylation
of amino-1,2,4-triazole with acetic anhydride followed by
nitration with acetyl nitrate and acid hydrolysis of the
nitration product with hydrochloric acid. The yield from
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Lee, Kien-yin & Storm, C.B. Insensitive explosive, patent, December 31, 1991; New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc621994/m1/4/: accessed March 21, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.