Kinetics of decomposition of 1,1-diamino-2,2-dinitroethylene (fox-7). 5. Vapor pressure and reaction in the gas phase

Cover Page

Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription Access

Abstract

The pressure of β-FOX-7 vapors in the temperature range 140–160 °C was determined by the manometric method. The correlation dependence of logPvap on 1/T has been established, which makes it possible to estimate the value of Pvap with satisfactory accuracy in the temperature range of 100–200°C. The kinetics of the reaction in the gas phase was measured at temperatures of 200–230 °C and m/V = 10–3–10–4 g/cm3. It was found that under these conditions, in parallel with the usual monomolecular isomerization reaction into aci-form, a chain process of direct oxidation of FOX-7 by NO2 proceeds. The consequence of this reaction is a significant decrease in the activation energy observed and the appearance of rate dependence on the experimental conditions. The scheme of the main stages of the chain reaction is presented and the conditions necessary for the manifestation of this reaction are determined.

About the authors

G. M. Nazin

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences

Email: akazakov@icp.ac.ru
Russian Federation, Chernogolovka

A. I. Kazakov

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences

Author for correspondence.
Email: akazakov@icp.ac.ru
Russian Federation, Chernogolovka

T. S. Larikova

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences

Email: akazakov@icp.ac.ru
Russian Federation, Chernogolovka

A. V. Nabatova

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences

Email: akazakov@icp.ac.ru
Russian Federation, Chernogolovka

N. N. Volkova

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences

Email: akazakov@icp.ac.ru
Russian Federation, Chernogolovka

References

  1. Nazin G.M., Dubikhin V.V., Goncharov T.K., Kazakov A.I., Nabatova A.V., Shastin A.V. // Russ. J. Phys. Chem. B. 2021. V. 15. P. 483. https://doi.org/10.1134/S1990793121030283
  2. Bellamy A.J. // Struct. Bond. 2007. V. 125. P. 1. https://doi.org/10. 1007/430_2006_054
  3. Andreev K.K. Thermal Decomposition and Combustion of Explosives. Moscow: Nauka, 1966 [in Russian].
  4. Nazin G.M., Dubikhin V.V., Kazakov A.I. et al. // Russ. J. Phys. Chem. B. 2022. V. 16. P. 72. https://doi.org/10.1134/S1990793122010122
  5. Galperin L.N., Kolesov Yu.R., Mashkinov L.B., Turner Yu.E. // Proceedings of the Sixth All-Union Conference on Calorimetry. Tbilisi: Metsniereba, 1973 [in Russian].
  6. Rozlovsky A.I. Fundamentals of explosion safety techniques when working with gases and vapors. Moscow: Chemistry, 1972 [in Russian].
  7. Krisyk B.E., Sypko T.M., Zakharov V.V. еt al. // J. Energetic Mater. 2021. V. 42. № 1. P. 1. https://doi.org/10.1080/07370652.2021.2017076
  8. Nazin G.M., Dubikhin V.V., Goncharov T.K. et al. // Russ. J. Phys. Chem. B. 2021. V. 15. P. 604. https://doi.org/10.1134/S1990793121040059

Supplementary files

Supplementary Files
Action
1. JATS XML
Download

Copyright (c) 2024 Russian Academy of Sciences