摘要
The thermal behavior, mechanism and kinetic parameters of the exothermic first-stage decomposition reaction of the title compound in a temperature-programmed mode have been investigated by means of DSC, TG-DTG and IR. The reaction mechanism was proposed. The empirical kinetic model functions in differential form, apparent activation energy (Ea) and pre-exponential factor (A) of this reaction are (1 - α) ?1.119, 211.3 kj/mol and 1020.2 s?1, respectively. The critical temperature of thermal explosion of the compound is 202.2 °C. The values of ΔS≠, ΔH≠ and CΔG≠ of this reaction are 143.8 J.mol?1.K?1, 208.7 kj/mol and 141.7 kj/mol, respectively.
The thermal behavior, mechanism and kinetic parameters of the exothermic first-stage decomposition reaction of the title compound in a temperature-programmed mode have been investigated by means of DSC, TG-DTG and IR. The reaction mechanism was proposed. The empirical kinetic model functions in differential form, apparent activation energy (Ea) and pre-exponential factor (A) of this reaction are (1 - α) ?1.119, 211.3 kj/mol and 1020.2 s?1, respectively. The critical temperature of thermal explosion of the compound is 202.2 °C. The values of ΔS≠, ΔH≠ and CΔG≠ of this reaction are 143.8 J.mol?1.K?1, 208.7 kj/mol and 141.7 kj/mol, respectively.
基金
theScienceandTechnologyFoundationofShaanxiKeyLaboratoryofPhysicoInorganicChemistry(No.2 9 3,2 0 01)andtheEducationalSpecialFoundationofShaanxiProvince (No .0 1H0 8)
