INFLUENCE OF CHEMICALLY ACTIVE ADDITIVES ON EMISSION SPECTRA OF THE FLAMES OF HYDROGEN AND DEUTERIUM OXIDATION IN NEAR IR REGION
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Publisher:Ohio State University
Band system in the region 852 $-$ 880 nm and bands 670 and 846 nm over pressures 0.1 $-$ 1 atm in the flames of mixtures of hydrogen with oxygen and air has been detected. The system is assigned to overtone transitions of H$_2$O$_2$ (3$\nu_1+\sigma$) correspondingly arising from the reaction of HO$_2+$HO$_2-$H$_2$O$_2^v +$O$_2 +$33.5 kcal/mole. The bands 670 and 846 nm are assigned to overtone transitions of HO$_2$ radical (4$\nu_1+\sigma$) and (3$\nu_1+\sigma$) correspondingly arising from the reaction of H$+$O$_2$($+$M)$-$HO$_2$($+$M) $+$ 44 kcal/mole. By this means the extent of energy of these elementary processes is located in vibrational degrees of freedom of products. It has been detected that HO$_2$ radicals occur originally in overtone-excited states in combustion both of hydrogen and deuterium in the presence of small additives of propylene as an inhibitor.
Author Institution: Institute for Structural Macrokinetics and Material Science of Russian Academy of Sciences, 142432, Russian Federation, Noginski region, Chernogolovka
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