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Thermal Decomposition Process of HMX
Author(s) -
Kimura J.,
Kubota N.
Publication year - 1980
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.19800050102
Subject(s) - sublimation (psychology) , thermal decomposition , formamide , exothermic reaction , decomposition , bond cleavage , thermodynamics , chemistry , melting point , reaction rate constant , hydroxymethyl , pyrolysis , materials science , kinetics , organic chemistry , psychology , physics , quantum mechanics , psychotherapist , catalysis
Abstract The thermal decomposition of HMX has been investigated using thermoanalytical techniques and infrared spectroscopic study at both above and below its melting point. The weight loss phenomenon that occurs as the temperature is elevated at a constant heating rate has been clearly separated into four elementary processes which are induction period, sublimation, first order solid phase reaction, and highly exothermic liquid phase reaction by plotting them against the logarithm of the heating rate versus the reciprocal temperature. Hydroxymethyl formamide has been shown to be a major product of the liquid phase decomposition, which suggests that the decomposition of HMX in the liquid phase should be initiated by the N‐N bond scission but not by the C‐N bond scission.