摘要
采用加速量热仪(ARC)对含微量Fe3+的30%H2O2进行热危险性分析,并与30%H2O2的热分解过程进行对比。结果表明:微量Fe3+的存在对H2O2的分解有一定的催化作用,能降低其低温分解活化能,使其在较低温度下发生缓慢的分解反应,从而导致H2O2浓度逐渐降低,并使随后的绝热自分解反应变慢、完全分解时间变长、分解过程中产生的压升速率和温升速率变低。但是,在相同绝热分解温度下,含微量Fe3+的H2O2分解压力高于纯H2O2的分解压力。
The thermal hazard analysis of 30% H202 containing micro amount of Fe3＋ has been performed by using the accelera- ting rate calorimeter （ARC）, and the results have been com- pared with those of the thermal decomposition of pure 30% H202. The results showed that, the existence of micro amount of Fe3＋ has certain catalytic action for 30% H202 decomposi- tion, as can low reduce activation energy （Ea） of 30% H202 decomposition at the lower temperature and make its decompo- sition occur slowly at a lower temperature, and then the concen- tration of H202 decreases gradually, which will result in the subsequent slower adiabatic self-decomposition, longer decom- position time, low pressure rise rate and low temperature riserate during the HzOz decomposition. But, the pressure pro- duced by the decomposition of 30% HzO2 containing micro a- mount of Fe3＋ is higher than that of the pure 30V00 HzOz under the same adiabatic decomposition temperature
出处
《消防科学与技术》
CAS
北大核心
2012年第6期554-557,共4页
Fire Science and Technology
基金
上海应用技术学院重点课程建设项目(A22/1020M10CJ10)
上海应用技术学院引进人才科研启动基金项目(YJ2009-37)
上海应用技术学院安全技术及工程重点学科建设项目资助项目(A14/1020Q110010)
上海市重点学科建设项目(J51502)
关键词
H2O2
FE3+
加速量热仪
绝热分析
Hydrogen peroxide
Fe3＋ accelerating rate calorim-eter
Adiabatic analysis
