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Citation: Li Jing-Hua, Zhang Gui-En. Investigation of the Kinetics and Mechanism of Decomposition of Ammonium Hydrogen Sulfate[J]. Acta Physico-Chimica Sinica, ;1992, 8(01): 123-127. doi: 10.3866/PKU.WHXB19920122 shu

Investigation of the Kinetics and Mechanism of Decomposition of Ammonium Hydrogen Sulfate

1.
Department of Chemistry Henan Normal University, Xinxiang 453002

Received Date: 15 August 1990
Available Online: 15 February 1992

The thermal decomposition of NH_4HSO_4 was studied by means of thermogravi-metry both at cosntant temperature and linearly increasing of temperature. Three-stage identification of the function depending on a mechanism was suggested. The experi-mental results and theoretical analysis showed that the thermal decomposition of NH_4HSO_4 is an one dimensional phase boundary reaction.
Kinetic paramters:
E=141.25 kJ·mol~(-1), A=1.563×10~(10) min~(-1) (isothermal run)
E=131.83 kJ·mol~(-1), A=3.3113×10~9 min~(-1)(dynamic run)
Kinetic compensition effect:
lgA=0.0899E-2.5143
- Ammonium hydrogen sulfate; Kinetics; Thermogravimetry
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