Thermal behavior and thermal safety on 3,3-dinitroazetidinium salt of perchloric acid

Thermodynamic properties of 4-amino-3-furazanecarboxamidoxime

“…Six integral methods (MacCallum-Tanner, Šatava-Še sták, Agrawal, General integral, Universal integral and FlynnWall-Ozawa) and one differential method (Kissinger) were employed [14][15][16][17][18][19][20]. The values of E a were obtained by Flynn-Wal l-Ozawa's method from the isoconversional DSC curves at the heating rates of (2.5, 5.0, 10.0 and 15.0) K Á min À1 , and the E a -a relation is shown in figure 3.…”

“…The thermal ignition temperature (T be or T TIT ) was obtained by substituting E eO and T e0 into equation (4) [14][15][16][17][18][19][20][21][22], and the critical temperatures of thermal explosion (T bp or T b ) was obtained by substituting E pO and T p0 into equation (4). The values (T TIT and T b ) are (548.89 ± 0.32) K and (564.97 ± 0.33) K, respectively.…”

Thermal Behavior and Specific Heat Capacity of 1‐t‐Butyl‐3,3‐dinitroazetidinium Perchlorate

“…But there is no melting process for DNAZ · HClO 4 , it shows that the lattice energy of DNAZ · HClO 4 is higher than that of TDNAZ · HClO 4 , tert-butyl group leads to the decrease of lattice energy of compound. The third stage is an intense exothermic decomposition process, the T e and T p are 481.08 K and 484.31 K, respectively, they are all higher than those of DNAZ · HClO 4 (465.24 and 473.99 K) [2], which indicates that TDNAZ · HClO 4 has better thermal stability than DNAZ·HClO 4 , and the molecular structure analysis shows that tert-butyl group improved the thermal stability of compound. The decomposition heat of TDNAZ · HClO 4 is À1348 J g À1 , it is lower than that of DNAZ · HClO 4 (À2937 J g À1 ) [2].…”

“…For example, NH 4 ClO 4 is used in solid fuel propellant [1]. 3,3-dinitroazetidinium perchlorate (DNAZ · HClO 4 ) has good performance for energetic materials, its critical temperature of thermal explosion (T b ) is 461.50 K [2], its nitrogen content and oxygen-balance are 16.97 % and 3.23 %, respectively, its detonation velocity and detonation pressure are 8326.42 AE 5.23 m s À1 and 32.30 AE 0.05 GPa, respectively [3].…”

Thermal Behavior and Detonation Characterization of 3,3‐Dinitroazetidinium Salicylate

“…The DSC curves at the heating rates of 2.5, 5.0, 10.0 and 15.0 8C min À1 were dealt with the mathematic means, and the temperature data corresponding to the conversion degrees (a) were found. Six integral methods (MacCallum-Tanner, Šatava-Šesták, Agrawal, General integral, Universal integral, and Flynn-Wall-Ozawa) and one differential method (Kissinger) were employed [14][15][16][17][18][19][20][21][22]. The values of E a were obtained by Flynn-Wall-Ozawa's method from the iso-conversional DSC curves at the heating rates of 2.5, 5.0, 10.0 and 15.0 8C min À1 , and the E a -a relation is shown in Figure 4.…”