COMBUSTION RESIDUES FROM N2O4-MMH MOTORS

Abstract
Motor residues from the combustion of N2O4 and MMH were analyzed. Under steady-state and pulse-mode firings, the major constituents of the nonvolatile residues were found to be ammonium nitrate and MMH.HNO3, respectively. The latter material contained a heat-sensitive compound which triggered its decomposition at a lower temperature. The application of heat to MMH. HNO3 initially converted the salt to monomethylammonium nitrate. The infrared spectra and differential analysis curves for these materials are presented.

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