Acceleration of the thermal degradation of PETN in the microdroplets flow reactor

Acceleration of the thermal degradation of PETN in the microdroplets flow reactor Full article

Journal

Journal of Hazardous Materials
ISSN: 1873-3336 , E-ISSN: 0304-3894

Output data

Year: 2021, Volume: 420, Article number : 126670, Pages count : 8 DOI: 10.1016/j.jhazmat.2021.126670

Tags

Thermal degradation, Microdroplets flow reactor, PETN

Authors

Sheven D.G. ¹ , Pervukhin V.V. ¹

Affiliations

1	Nikolaev Institute of Inorganic Chemistry of SB RAS, Novosibirsk, Russia

Thermal degradation of pentaerythritol tetranitrate (PETN) was investigated in microdroplets within a heated capillary used as a flow reactor. The thermal degradation was monitored by aerodynamic thermal breakup droplet ionization mass spectrometry. It was shown that the PETN degradation in microdroplets occurs much faster than the bulk reaction (by 4–5 orders of magnitude). The effect of the capillary material [stainless steel (Fe, Cr), copper (Cu), or fused quartz (SiO2)] on the thermal PETN degradation in microdroplets of water or acetonitrile was studied next. The capillary material affected the rate of thermal PETN degradation much more weakly than did the use of microdroplets (pure Cu was most conducive to the degradation). Kinetic parameters (activation energy and the frequency factor) of the PETN degradation for all the studied materials of the flow-through reactor and the solvents were estimated under the assumption that the thermal degradation is a first-order reaction. Implications of the acceleration of PETN degradation in microdroplets are discussed.

Sheven D.G. , Pervukhin V.V.
Acceleration of the thermal degradation of PETN in the microdroplets flow reactor
Journal of Hazardous Materials. 2021. V.420. 126670 :1-8. DOI: 10.1016/j.jhazmat.2021.126670 WOS OpenAlex

Web of science:	WOS:000696917100004
OpenAlex:	W3185010149

DB	Citing
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