Study of Thermal Decomposition Kinetics of Low-temperature Reaction of Ammonium Perchlorate by Isothermal TG |
| |
Authors: | Rajić M Sućeska M |
| |
Institution: | (1) Marine Research and Special Technologies, Brodarski Institute, Av. V. Holjevca 20, 10000 Zagreb, Croatia |
| |
Abstract: | The kinetics of the thermal decomposition of ammonium perchlorate at temperatures between 215 and 260°C is studied, in this
work, by measuring the sample mass loss as a function of time applying the isothermal thermogravimetric method.
From the maximum decomposition rate – temperature dependence two different decomposition stages, corresponding to two different
structural phases of ammonium perchlorate, are identified. For the first region (215–235°C), corresponding to the orthorhombic
phase, the mean value of the activation energy of 146.3 kJ mol–1, and the pre-exponential factor of 3.43⋅1014 min–1 are obtained, whereas for the second region (240–260°C), corresponding to the cubic phase, the mean value of the activation
energy of153.3 kJ mol–1, and the pre-exponential factor of 4.11⋅1014 min–1 are obtained.
This revised version was published online in August 2006 with corrections to the Cover Date. |
| |
Keywords: | activation energy ammonium perchlorate decompositon isothermal kinetics thermogravimetry |
本文献已被 SpringerLink 等数据库收录! |
|