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A new compound,[(NH2)2C=NH2]+N(NO2)2-(GDN),was prepared by mixing ammonium dinitramide(ADN) and guanidine hydrochloride in water.The thermal behavior of GDN was studied under the non-isothermal conditions with DSC and TG/DTG methods.The apparent activation energy(E) and pre-exponential constant(A) of the exothermic decomposition stage of GDN were 118.75 kJ/mol and 1010.86 s-1,respectively.The critical temperature of the thermal explosion(Tb) of GDN was 164.09 ℃.The specific heat capacity of GDN was determined with the Micro-DSC method and the theoretical calculation method,and the standard molar specific heat capacity was 234.76 J·mol-1·K-1 at 298.15 K.The adiabatic time-to-explosion of GDN was also calculated to be a certain value between 404.80 and 454.95 s.
A new compound, [(NH2) 2C = NH2] + N (NO2) 2- (GDN), was prepared by mixing ammonium dinitramide (ADN) and guanidine hydrochloride in water. The thermal behavior of GDN was studied under the non-isothermal conditions with DSC and TG / DTG methods. The apparent activation energy (E) and pre-exponential constant (A) of the exothermic decomposition stage of GDN were 118.75 kJ / mol and 1010.86 s-1, respectively. The critical temperature of the thermal explosion (Tb) of GDN was 164.09 ° C. The specific heat capacity of GDN was determined with the Micro-DSC method and the theoretical calculation method, and the standard molar specific heat capacity was 234.76 J · mol -1 · K -1 at 298.15 K. The adiabatic time-to-explosion of GDN was also calculated to be a certain value between 404.80 and 454.95 s.