苯甲酰肼与对硝基苯肼的热稳定性分析

Adiabatic stability analysis of benzoyl hydrazine and p-Nitro phenyl hydrazine

In order to prevent fire even explosion accident caused by hydrazines in chemical industry,the adiabatic stability of benzoyl hydrazine and p-nitro phenyl hydrazine are tested by Accelerating Rate Calorimeter(ARC).Then pseudo-inverse matrix method is used to calculate dynamics parameters of the two samples respectively.Finally,the measured data are modified by considering of thermal inertia factor  of ARC.The results show that the initial exothermic temperature for benzoyl hydrazine is 141.16℃.with the maximum temperature being 364.50℃ and the time to maxinmm self-heating rate is 1061.11 min.But the initial exothermic temperature for p-Nitro phenyl hydrazine is 88.36℃,with the maximum temperature being 596.38℃ and the time to maximum self-heating rate is 314.67 min.It can be seen that p-nitro phenyl hydrazine is easier to explode and the explosion is more powerful.

In order to prevent fire even explosion accident caused by hydrazines in chemical industry, the adiabatic stability of benzoyl hydrazine and p-nitro phenyl hydrazine are tested by Accelerating Rate Calorimeter（ARC）. Then pseudo-inverse matrix method is used to calculate dynamics parameters of the two samples respectively. Finally, the measured data are modified by considering of thermal inertia factor φof ARC. The results show that the initial exothermic temperature for benzoyl hydrazine is 141. 16℃. with the maximum temperature being 364. 50℃ and the time to maxinmm self-heating rate is 1061.11 rain. But the initial exothermic temperature for p-Nitro phenyl hydrazine is 88.36℃, with the maximum temperature being 596. 38℃ and the time to maximum stir-heating rate is 314. 67 min. It can be seen that p-nitro phenyl hydrazine is easier to explode and the explosion is more powerful.