Add time:08/08/2019         Source:sciencedirect.com

4-Amino-3-furazanecarboxamidoxime (AAOF) is an important precursor for synthesizing new furazano (furoxano) energetic compounds. Its thermal behaviour was studied under a non-isothermal condition by DSC methods. The results of this study show that there are one melting process and two exothermic decomposition processes. Its kinetic parameters of the intense exothermic decomposition process are obtained from analysis of the DSC curves. The apparent activation energy (Ea), pre-exponential factor (A) and the mechanism function (f(α)) were (146 ± 18) kJ · mol−1, (1010.9±1.8) s−1 and (1 − α)2, respectively. The specific molar heat capacity (Cp,m) of AAOF was determined by a continuous Cp mode of micro-calorimeter. The self-accelerating decomposition temperature (TSADT), thermal ignition temperature (TTIT) and critical temperatures of thermal explosion (Tb) were obtained to evaluate its thermal safety.

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