THE IDENTIFICATION OF THE MECHANISM FUNCTION AND THE KINETIC INVESTIGATION OF THE ENERGY-STORING REACTION OF AMMONIUM HYDROGEN SULFATE

被引：8
|
作者：
LI, JH
ZHANG, G
WANG, JY
机构：
[1] Department of Chemistry, Henan Normal University, Xinxiang
来源：
THERMOCHIMICA ACTA | 1992年 / 207卷
关键词：
D O I：
10.1016/0040-6031(92)80137-L
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The kinetics and the mechanism of the thermal decomposition of NH4HSO4 were studied by means of thermogravimetry at constant temperature and with increasing temperature. The mechanism function of the reaction was found and identified by a three-stage identification method. Some kinetic parameters were determined. The results of the two methods showed that the thermal decomposition of NH4HSO4 is dominated by an R1 mechanism, i.e. a one-dimensional phase-boundary reaction. The activation energy E obtained by therinogravimetry at constant temperature is 141.25 kJ mol - 1. The frequency factor A is 1.563 x 10(10) min -1. Its kinetic compensation effect is log A = 0.0899E - 2.5143.
引用
收藏
页码：219 / 225
页数：7
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