Synthesis, characterization, and thermal analysis of a new energetic salt based on 1ʹ-hydroxy-1<i>H</i>,1ʹ<i>H</i>-5,5ʹ-bitetrazol-1-olate

<p>4-Amino-1,2,4-triazolium 1ʹ-hydroxy-1<i>H</i>,1ʹ<i>H</i>-5,5ʹ-bitetrazol-1-olate (ATHBTO) was synthesized by reacting 4-amino-1,2,4-triazole (AT) and 1<i>H</i>,1′<i>H</i>-5,5′-bistetrazole-1,1′-diolate dihydrate (H<sub>2</sub>BTO·2H<sub>2</sub>O). Its crystal structure was characterized through single-crystal X-ray diffraction. Meanwhile, FTIR, <sup>1</sup>H NMR, <sup>13</sup>C NMR, and elemental analysis were also introduced to analyze its composition. The thermal stability was investigated by differential scanning calorimetry, thermogravimetric analysis, and thermogravimetric tandem infrared spectrum. Results indicated that ATHBTO exhibited excellent resistance to thermal decompositions reaching 511.4 K and had a 64.6% mass loss between 475.7 and 552.3 K. The kinetics parameters were calculated by Kissinger’s method and Ozawa–Doyle’s method. Moreover, according to the Kamlet–Jacobs formula, the calculated detonation velocity and detonation pressure of ATHBTO attained 8218 m/s and 28.69 GPa, respectively.</p>