High-Energy Salts of 5.5′-Azotetrazole. 2. Burning Behavior and the Combustion Mechanism

Resumo

The combustion of ammonium, hydrazine, hydroxylammonium, ethylenediamine, guanidine, aminoguanidine, diaminoguanidine, and triaminoguanidine salts of 5.5′-azotetrazole is under study. The dependences of the burning rate on pressure and temperature distribution in a combustion wave are determined. It is shown that the combustion of salts obeys a model with a leading reaction in the condensed phase. The surface temperature during the combustion of 5.5′-azotetrazole salts is controlled by a dissociative evaporation process. Based on the parameters of combustion and established combustion mechanism, the kinetics of the leading reaction of the combustion of 5.5′-azotetrazole salts, which is a decomposition reaction, is determined. The ambiguity of the influence of the base strength on the combustion process is shown. On the one hand, an increase in the base strength decreases the decomposition rate of a substance due to salt dissociation suppression. On the other hand, it increases the surface temperature at which the decomposition reaction proceeds.