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  • 1 Department of Chemistry University of Gorakhpur 273 009 Gorakhpur India
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Thermal and explosion characteristics of ring(mono) substituted arylammonium perchlorates (RSAP) are studied by DTA, impact and friction sensitivity measurements. Exothermic decomposition temperature (Td) from DTA curves and impact sensitivity data (h50%) were found to be linearly related to the Hammett substituent constant (σ+) andpKa values of the corresponding arylamines. A reaction scheme, based on the formation of reaction intermediates during decomposition and explosion, accounting for the products, is proposed which, involves proton transfer as the rate determining process and evolution of ammonia. It seems that oxidation-reduction reactions between the arylamine/substituted benzene and HClO4 or its decomposition products cause explosion.