Cesium based pyrolants combustion properties and emission spectroscopy

We have been studying the combustion properties of magnesium based pyrolants using perfluorinatedtetrazolates as alternative oxidizers to PTFE [1-3]. Perfluorinatedtetrazolates yield higher burn rates, larger flame envelopes (which enhance radiant intensity) and show reduced susceptibility to windstream degradation. In the present work the aerobic ambient pressure combustion of a wide stoichiometric range (zeta(Mg): 8- 80 wt-%) of magnesium/cesium 5-trifluoromethyltetrazolate, [Cs][(N4C)CF3], pyrolants has been studied with UV-VIS, NIR and IR-spectroscopy and optical high-speed camera. The investigation reveals the nature of the transient species in these systems. NIR spectroscopic investigations elucidate the temperature of the combustion process which is in good accord with thermochemical calculations