Thermal decomposition of 3,4-bis(4′-aminofurazano-3′) furoxan

The thermal decomposition of 3,4-bis(4′-aminofurazano-3′) furoxan (BAFF) was studied by DSC, TG, the combination technique of in situ thermolysis cell with rapid-scan Fourier transform infrared spectroscopy (thermolysis/RSFT-IR) and the fast thermolysis probe with rapid-scan Fourier transform infrared spectroscopy (fast thermolysis/RSFT-IR). The result shows that the melting point of BAFF is 168.4 °C, the peak temperatures of the two exothermic peaks are respectively 260.4 °C and 338.8 °C on DSC curve. The apparent activation energy E a and the pre-exponential factor A are respectively 122.21 kJ mol −1 and 10 9.89 s −1 for major exothermic decomposition process of BAFF. The kinetic equation of major exothermic decomposition for BAFF is d α/d t =10 10.07exp(−1.46993 × 10 4/ T)(1 − α) [−ln(1 − α)] 1/3. The thermal decomposition gaseous products of BAFF consist of CO 2, NO 2, N 2O and NO. The BAFF is shown by IR spectroscopy to convert to ammonium dicyanamide (NH 4[N(CN) 2]), cyclic azine residues (melamine or melamine-like).