Comparative study of thermal stability and combustion of dinitropyrazole isomers

被引：12

作者：

Sinditskii, V. P. ^{[1
]}

Hoang, T. H. ^{[1
]}

Smirnova, A. D. ^{[1
]}

Egorshev, V. Yu ^{[1
]}

Yudin, N., V ^{[1
]}

Vatsadze, I. A. ^{[2
]}

Dalinger, I. L. ^{[2
]}

机构：

[1] Mendeleev Univ Chem Technol, 9 Miusskaya Sq, Moscow 125047, Russia

[2] Russian Acad Sci, ND Zilinskiy Inst Organ Chem, 47 Leninskiy Prosp, Moscow 119991, Russia

来源：

THERMOCHIMICA ACTA | 2018年 / 667卷

基金：

俄罗斯科学基金会;

关键词：

Combustion; Thermal decomposition; Dinitropyrazoles; Kinetics; ENERGETIC MATERIALS; DECOMPOSITION; NITROPYRAZOLES; REARRANGEMENT; MECHANISM; PRESSURE;

D O I：

10.1016/j.tca.2018.07.006

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A comparative study of the thermal stability and combustion peculiarities of three dinitropyrazole isomers was carried out. It has been found that the rate-limiting stage of the decomposition of 1,3-dinitropyrazole (1,3-DNP) and 1,4-dinitropyrazole (1,4-DNP) both having the N-bounded nitro group, is the N -> C migration of the nitro group rather than its elimination, followed by secondary decomposition reactions of non-aromatic 3H-pyrazole. In the case of 3,4-dinitropyrazole (3,4-DNP) the rate-limiting stage is assumed to be the nitro group elimination. All the studied pyrazole isomers revealed close burning rate vs. pressure dependences despite significant differences in the thermal stability and volatility.

引用

页码：1 / 8

页数：8

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