کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
581768 1453161 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Non-isothermal thermal decomposition reaction kinetics of 2-nitroimino-5-nitro-hexahydro-1,3,5-triazine (NNHT)
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
Non-isothermal thermal decomposition reaction kinetics of 2-nitroimino-5-nitro-hexahydro-1,3,5-triazine (NNHT)
چکیده انگلیسی
The thermal behavior and decomposition reaction kinetics of 2-nitroimino-5-nitro-hexahydro-1,3,5-triazine (NNHT) were investigated by TG-DTG and DSC under atmospheric pressure and flowing nitrogen gas conditions. The results show that the thermal decomposition process of NNHT has two mass loss stages. The exothermic decomposition reaction mechanism obeys chemical reaction rule. The kinetic parameters of the reaction are Ea = 131.77 kJ mol−1, lg(A/s−1) = 12.56, respectively. The kinetic equation can be expressed as: dα/dt=1012.861−α3/2e−1.5849×104/T. The critical temperature of thermal explosion of NNHT obtained from the peak temperature (Tp) is Tbp = 467.22 K. The entropy of activation (ΔS≠), enthalpy of activation (ΔH≠), and free energy of activation (ΔG≠) of the reaction are −7.978 J mol−1 K−1, 127.99 kJ mol−1 and 131.62 kJ mol−1, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 167, Issues 1–3, 15 August 2009, Pages 205-208
نویسندگان
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