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Citation: Qian xin-Ming, Wang Yun, Feng Chang-Gen, Zheng Rao. Investigation of Thermal Decomposition of KClO₃/CuO/S/Mg-Al/C₆Cl₆ System by Accelerating Rate Calorimeter[J]. Acta Physico-Chimica Sinica, ;2001, 17(01): 70-73. doi: 10.3866/PKU.WHXB20010115 shu

Investigation of Thermal Decomposition of KClO₃/CuO/S/Mg-Al/C₆Cl₆ System by Accelerating Rate Calorimeter

1.
Mechenanics and Engineering Department,Beijing Institute of Technology.Benjing 100081;Mechanics Engineering Department,Benjing University of Chemical Engineering,Benjing 100081

Received Date: 21 April 2000
Available Online: 15 January 2001

The thermal decompositions of two systems(NO.1,KClO₃(52.2%)/CuO(26.0%)/S(9.6%)/Mg-Al(3.5%)/C₆Cl₆(4.35%)) and NO.2,(KClO₃(52.2%)/CuO(26.0%)/S(9.6%)/Mg-Al(3.5%)/C₆Cl₆(4.35%)) are studied using Accelerating Rate Caorimeter (ARC).Temperature vs time curve and pressure vs time curve of reactions are shown in Fig.1 and Fig.2 respectively.The basic data including reaction time(1.3 and 7.3 min respectively),initial temperature (159 and 150℃ respectively),temperature at the maximum rate(272 and 272℃ respectively),the maximum pressure (420 and 190kPa respectively) and the activation energies(175.6 and 135.2 kJ mol-1 respectively) of the thermal decomposition are given to evaluate the safety of the two systems.Results indicate that system NO.2 is safer than NO.1.Compared with the traditional methods,ARC technique can be used to measure temperature and pressure of exothermic reaction concurrently,to find the tiny exothermicity and to determine the initial temperature of exothermic reaction.
- Accelerating rate calorimeter;Chemical reaction kinetics;Thermal decomposition;Pyrotechnic
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Investigation of Thermal Decomposition of KClO₃/CuO/S/Mg-Al/C₆Cl₆ System by Accelerating Rate Calorimeter