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Thermal Decomposition of 1,3,5,5‐Tetranitrohexahydro‐Pyrimidine: A New Type of Autocatalysis that Persists at High Temperaturesстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 13 января 2021 г.
- Авторы: Sinditskii Valery P., Smirnova Anastasia D., Vu Tuan Q., Filatov Sergey A., Serushkin Valery V., Rudakov Gennady F.
- Журнал: Propellants, Explosives, Pyrotechnics
- Том: 46
- Номер: 1
- Год издания: 2021
- Издательство: John Wiley & Sons Ltd.
- Местоположение издательства: United Kingdom
- Первая страница: 150
- Последняя страница: 158
- Номер статьи: prep.202000259
- DOI: 10.1002/prep.202000259
- Аннотация: The thermal stability of 1,3,5,5‐ tetranitrohexahydropyrimidine (TNDA) in liquid phase under isothermal conditions was studied. It was established that the TNDA decomposition (kliq=3.1 ⋅ 1021⋅exp(−26865/T), Ea=223.4 kJ mol−1) is accompanied by strong autocatalysis (kcat=9.8 ⋅ 1014⋅exp(‐18056/T), Ea=150.2 kJ mol−1). The mechanism of autocatalysis was proposed. The essence of autocatalysis is the oxidation of TNDA by decomposition products, followed by the destruction of the molecule. An unusual feature of this autocatalysis is that, in contrast to autocatalysis of nitroesters, the process does not disappear at high temperatures, but rather determines the kinetics of heat release in the combustion wave. The surface temperature and combustion mechanism of TNDA were established through thermocouple studies. It was shown that the autocatalysis reaction at the surface temperature controls the burning rate.
- Добавил в систему: Синдицкий Валерий Петрович