✍ Scribed by G.K. Williams; T.B. Brill
No coin nor oath required. For personal study only.
Hydrazinium nitroformate (HNF), N,H,[C(NO,),],
holds promise as a clean-burning, high-energy oxidizer for solid rocket propellants. By using T-jump/IVR spectroscopy, the thermal decomposition process is outlined in the 130"-400°C range, which includes surface melt/foam formation and self-ignition events. Reaction regimes containing evaporation, conversion to NH,[C(NO,),], and progressive decomposition into CO,, CO, N,O, NO, and H,O~ are observed. Based on the products these reaction regimes become increasingly exothermic at higher temperature. Decomposition induction-time kinetics (E, = 25 kcal/mol, In B(s) = 25.3) of the melt/foam layer were determined from time-to-exotherm data and give reasonable agreement with the measured combustion characteristics.
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