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Study of the thermal decomposition of 2,2’,4,4’,6,6’- hexanitrostilbene

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Author(s): Gilson da Silva | Koshum Iha | Andreza M. Cardoso | Elizabeth C. Mattos | Rita de Cássia L. Dutra

Journal: Journal of Aerospace Technology and Management
ISSN 1984-9648

Volume: 2;
Issue: 1;
Start page: 41;
Date: 2010;
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Keywords: Explosives | HNS | DSC | FT-IR

ABSTRACT
2,2’, 4,4’, 6,6’- hexanitrostilbene (HNS) is an energetic material, a nitroaromatic compound, with thermal and chemical stabilities, which is employed in the aerospace industry. In this work, the Arrhenius parameters (activation energy and pre-exponential factor) of thermal decomposition reaction were studied and the results were compared with the values reported in the literature. The Kissinger method, applied to DSC’s non-isothermal data of the decomposition temperature was chosen for this study. The activation energy determined for the thermal decomposition of HNS revealed values from 428 kJ.mol-1 to 477 kJ.mol-1, under the experimental conditions employed.
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