Influence of the energy content and its outputs on sensitivity of polynitroarenes

ABSTRACT

Among 28 polynitroarenes and their derivatives relationships are demonstrated between their impact, E_dr, and electric spark, E_ES, sensitivities, on the one hand, and the volume heats of their explosion, ρQ_max, and their enthalpies of formation, ΔH_form, on the other. While the impact sensitivity increases with increasing values of the ρQ_max variable (with certain exceptions), a change in the electric spark sensitivity in the aforesaid sense leads mostly to a decrease in this sensitivity. Taking the energy content of molecules, represented by the ΔH_form values, instead of the heat of explosion, gives ambiguous linear relationships for impact sensitivity. The semi-logarithmic relationship between the E_ES and ΔH_form values divides into sub-relationships. Both the impact and electric spark sensitivities increase with an increase in the ΔH_form values, with several exceptions in both these cases. From the results obtained is possible to see that it is necessary to distinguish between the influence of performance and the influence of energetic content of the energetic materials on their initiating reactivity.