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In this paper, 1,2,4-triazolium 2,4,5-trinitroimidazolate ( 2 ), 3-amino-1,2,4-triazolium 2,4,5-trinitroimidazolate ( 3 ) and 4-amino-1,2,4-triazolium 2,4,5-trinitroimidazolate ( 4 ) were synthesized based on the method of acid-base neutralization and precipitation, which is a simple method compared with the method in Gao’s literature. These compounds were characterized by FT-IR, NMR, elemental analysis. The structure of ( 2 ) was further confirmed by single-crystal X-ray diffraction. Thermal decomposition performances of ( 2 )-( 4 ) were tested using differential scanning calorimetry (DSC) and accelerating rate calorimeter (ARC). The DSC curves of ( 2 )-( 4 ) show that they all have good thermal stability and the order of thermal stability is ( 4 ) &gt; ( 2 ) &gt; ( 3 ). ARC test data calculation results show that the thermal stability of ( 2 )-( 4 ) is ( 3 ) &gt; ( 2 ) &gt; ( 4 ). The test results show that the thermal stability of compounds ( 2 )-( 4 ) under non-adiabatic and adiabatic conditions was quite different. The storage temperature of ( 2 ), ( 3 ) and ( 4 ) does not exceed 420.93 K, 435.78 K, and 393.69 K, respectively, and they will not undergo self-accelerating decomposition.

Facile synthesis of three kinds triazole salts of 2,4,5-trinitroimidazole and their thermal decomposition properties