Synthesis of a Novel Double Salt: Ammonium 3,4‐Diamino‐1,2,4‐triazolium Styphnate

Nitrogen-rich double salt ammonium 3,4-diamino-1,2,4-triazoliumstyphnate (NH4·DATr·TNR) (2) with good thermal stability was successfully synthesized by reacting 3,4-diamino-1,2,4-triazolium chloride aqueous solution with styphnic acid methanol solution under the reaction medium of aqueous ammonia. The title double salt was characterized by elemental analysis (EA), Fourier transformation infrared spectrum (FT-IR), and X-ray single-crystal diffraction. It crystallizes in the monoclinic crystal system with space group P21/n. Its density is 1.780 g·cm–3. Compound 2 is thermal stable below 200 °C by the differential scanning calorimetry (DSC) test. The non-isothermal kinetics parameters were calculated by the Kissinger's method and Ozawa-Doyle's method, respectively. In addition, compound 2 showed low friction and impact sensitivities.