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Structural and Thermal Characterization of A Novel High Nitrogen Energetic Material: (NH 4 ) 2 DNMT
Author(s) -
Xu KangZhen,
Zhang Hang,
Liu Ping,
Huang Jie,
Ren YingHui,
Wang BoZhou,
Zhao FengQi
Publication year - 2012
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.201100116
Subject(s) - detonation , thermal decomposition , detonation velocity , chemistry , nitrogen , energetic material , heat capacity , thermal , ammonium , adiabatic process , analytical chemistry (journal) , thermodynamics , organic chemistry , explosive material , physics
1,4‐Dihydro‐5 H ‐(dinitromethylene)‐tetrazole ammonium salt ((NH 4 ) 2 DNMT), a high nitrogen energetic compound, was synthesized and structurally characterized by single‐crystal X‐ray diffraction. The thermal behavior of (NH 4 ) 2 DNMT was studied with DSC and TG‐DTG methods. The kinetic equation of the thermal decomposition reaction is: d α /d T =10 13.17 /3 β (1− α ) −2 exp(−1.388×10 5 / RT ). The critical temperature of thermal explosion is 182.7 °C. The specific heat capacity of (NH 4 ) 2 DNMT was determined and the molar heat capacity is 301 J mol −1 K −1 at 298.15 K. The adiabatic time‐to‐explosion of (NH 4 ) 2 DNMT was calculated to be 277 s. The detonation velocity and detonation pressure were also estimated. All results showed that (NH 4 ) 2 DNMT presents good performance.