Acta Phys. -Chim. Sin. ›› 1986, Vol. 2 ›› Issue (01): 13-21.doi: 10.3866/PKU.WHXB19860103

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THE DETERMINATION OF MOST PROBABLE MECHANISM FUNCTION AND KINETIC PARAMETERS OF THERMAL DECOMPOSITION OF 2,6-DINITROPHERNCI BY A STNGLE NON-ISOTHERMAL DSC CURVE

Yang Zhengquan; Hu Rongzu*; Liang Yanjun; Li Xiangdong   

  1. Xian Modern Chemistry Research Institute
  • Received:1984-11-16 Revised:1985-10-04 Published:1986-02-15
  • Contact: Hu Rongzu

Abstract: Under linear temperature increase condition thermal behaviors, mechanismfunction and kinetic parameters of thermal decomposition of 2,6-dinitrophenol obtained with a model CDR-1 instrument with the sealed cell of stainless steel are reported. The data are fitted to the integral, differential and exothermic rate equations by linear least-squares, iterative, combined dichotomous and leastsquares methods, respectively. The apparent activation energy, pre-exponential constant, reaction order and probable mechanism function (integral form) of thermal decomposition reaction of 2,6-dinitrophenol obtained by the logical choice method are 134±9 kJ mol~(-1), 10~(9.17±0.77)s~(-1), 0, and a respectively.