An Investigation on Fast Thermolysis of Ammonium Perchlorate (AP) by FTIR Spectroscopy

作者：Zhang La ying^*; Liu Zi ru; Wang Xiao hong; Heng Shu yun; Pan Qing; Shao Ying hui; Zhang Gao; Zhao Feng qi

来源：Spectroscopy and Spectral Analysis, 2010, 30(8): 2098-2102.

DOI：10.3964/j.issn.1000-0593(2010)08-2098-05

• Physical chemistry
• AP
• Flash pyrolysis
• In-situ FTIR
• Decomposition mechanism

The fast thermolysis processes of ammonium perchlorate (AP) and its chemical reaction mechanism under certain simulated conditions of combustion were systematically studied by means of T-Jump/FTIR technique. AP was flash-pyrolyzed under different pressure nitrogen atmosphere, with the heating rate of 1 000 K . s(-1) and the set temperatures of 874 and 1 274 K. Thereafter, the real time species and concentration of its gaseous products were obtained and identified by using rapid scanning Fourier transform infrared (FTIR) in-situ spectroscopy. It was indicated that the main gaseous products of AP thermolysis is composed of NO(2), N(2)O, NO, HCl and NClO. Interestingly, the values of N(2)O/NO(2), NO/NO(2) and NO/NClO are increased while the test temperature or pressure is elevated. It is suggested that the transformation of condensed phase and heterogeneous gas/condensed phase was probably arises and the "following reactions" among the main gaseous products may also take place in the fast thermolysis process of AP.

• 出版日期2010-8
• 单位西安近代化学研究所