Kinetic model of thermal decomposition of nitric acid solutions of hydrazine nitrate

被引：0
|
作者：
Kalistratova, Vera [1 ]
Obedkov, Arseniy [1 ]
Belova, Elena [1 ]
机构：
[1] RAS, AN Frumkin Inst Phys Chem & Electrochem, IPCE, 31-4 Leninsky Prospect, Moscow 119071, Russia
来源：
THERMOCHIMICA ACTA | 2024年 / 742卷
关键词：
Hydrazine nitrate; Nitric acid; Thermolysis; Kinetics; Activation energy; Reaction rate; Explosion safety; STABILITY; PU;
D O I：
10.1016/j.tca.2024.179876
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The kinetic parameters of thermal decomposition of an aqueous solution containing 0.029 mass fractions of hydrazine nitrate and 0.44 mass fractions of nitric acid have been determined: onset temperature and specific thermal effect of exothermic reactions, activation energy, pre-exponential factor, reaction rate and order. Based on the data obtained, a mathematical model of thermal decomposition of nitric acid solutions of hydrazine nitrate has been proposed. It has been found that thermolysis of the solution has a multi-stage nature and can be described by a system of 5 equations of 1st and 2nd order. A comparison of two approaches to creating a mathematical model has been carried out: based on adiabatic calorimetry and differential scanning calorimetry data.
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页数：5
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