STUDY OF THE THERMAL DECOMPOSITION OF 2,2’,4,4’,6,6’- HEXANITROSTILBENE

Gilson da Silva, Koshun Iha, Andreza Cardoso, Elizabeth C. Mattos, Rita de Cássia L. Dutra

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.molˉ¹ to 477 kJ.molˉ¹, under the experimental conditions employed.

Keywords


Explosives, HNS, DSC, FT-IR.

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