Thermochemical and energetic properties of a couple of azidoderivatives of terfurazans

摘要

The experimental values of the heats of combustion (AH°<) and standard enthalpies of formation (ΔH~o_f) for two compounds, 4"-diazido-3,3';4',3"-terfiirazan-2'-oxide (DAzFF), and 4-azido-4"-nitro-3,3':4',3"-terfurazan — AzNTF) have been obtained: AH",-=-3666.2±4.5 kJ/mol, ΔH~o_f = 1305.1±45 kJ/mol for DAzFF andΔH~o_f=-3319.1±4.6 kJ/mol; ΔH~o_f=958.0±4.6 kJ/mol for AzNTF. It has been shown that for creation of the metal-free solid composite propellants basing on AzNTF or DAzFF one should use active binders and introduce a small amount of an oxidizer with a high oxygen content, e.g. ammonium perchlorate. Such compositions have equal or even higher energetic characteristics in comparison with similar ones basing on HMX.