Thermodynamic properties of 4-amino-3-furazanecarboxamidoxime |
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| Institution: | 1. School of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Low Metamorphic Coal clean Utilization, Yulin University, Yulin 719000, PR China;2. School of Chemical Engineering, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Northwest University, Xi’an 710069, PR China;3. Conservation Technology Department, The Palace Museum, Beijing 100009, PR China;4. Science and Technology on Combustion and Explosion Laboratory, Xi’an Modern Chemistry Research Institute, Xi’an 710065, PR China;1. Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, PR China;2. Department of Nuclear Medicine, Cardiovascular Institute and FuWai Hospital, Chinese Academy of Medical Sciences, Beijing, 100037, PR China;3. Experimental School Affiliated to Haidian Teachers Training College, Beijing, 100036, PR China;1. Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, PR China;2. Zhejiang Quhua Fluorine Chemistry Co., Ltd., Quzhou 324004, PR China |
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| Abstract: | 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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| Keywords: | 4-Amino-3-furazanecarboxamidoxime (AAOF) Thermal behaviour Non-isothermal kinetics Thermodynamics Thermal safety |
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