Comparative study of thermal stability and combustion of dinitropyrazole isomers

Comparative study of thermal stability and combustion of dinitropyrazole isomers Научная публикация

Журнал

Thermochimica Acta
ISSN: 1872-762X , E-ISSN: 0040-6031

Вых. Данные

Год: 2018, Том: 667, Страницы: 1-8 Страниц : 8 DOI: 10.1016/j.tca.2018.07.006

Авторы

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

Организации

1	Mendeleev University of Chemical Technology, 9 Miusskaya Sq., 125047 Moscow, Russia
2	N.D. Zilinskiy Institute of Organic Chemistry, Russian Academy of Science, 47 Leninskiy Prosp., 119991 Moscow, Russia

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.

Sinditskii V.P. , Hoang T.H. , Smirnova A.D. , Egorshev V.Y. , Yudin N.V. , Vatsadze I.A. , Dalinger I.L.
Comparative study of thermal stability and combustion of dinitropyrazole isomers
Thermochimica Acta. 2018. V.667. P.1-8. DOI: 10.1016/j.tca.2018.07.006 WOS Scopus OpenAlex

≡ Web of science:	WOS:000444663600001
≡ Scopus:	2-s2.0-85049971959
≡ OpenAlex:	W2857528399