Synthesis, thermal decomposition and sensitivity properties of a series of salts of di-guanidine-s-tetrazine of nitro-phenol

Tri-nitro-phenol (PA), tri-nitro-resorcinol(TNR) and tri-nitro- phloroglucinol(TNPG) salts of 3, 6-diguanidino-s-tetrazine(DGTz) were synthesized by reacting DGTz with PA, TNR and TNPG respectively. Thermal decomposition characters of the title compounds were investigated by DSC and TG-DTG. At 10°C · min^-1 linear heating rate, the thermal decomposition processes of those salts showed that there was only one exothermic peak for each salt between 50-450°C, and the title compounds were completely decomposed without any residue at 600°C. The kinetic parameters of the exothermic process of the title compounds were calculated by Kissinger s method and Ozawa-Doyle's method, and the Arrhenius equations were obtained. Conventional sensitivity properties were determined, showing that the three salts were insensitive to friction, impact and flame.