Engineering Physics Annotation << Back ON THE ROLE OF ELECTRONICALLY EXCITED MOLECULES IN OXIDATION OF NO TO NO2 BY ATMOSPHERIC AIR V.G. FEDOTOV, E.Y. FEDOTOVA Authors added mixture of nitrogen oxides NxOy (obtained by interaction of nitrogen acid with copper) to atmospheric air and irradiated this medium with He-Ne laser. The beam of He-Ne laser produced strong chemical luminescence and stimulated emission of radiation in directions, different from direction of exciting laser beam. Kinetic analysis of these phenomena leads to conclusion about chain mechanism of photochemical NO oxidation reaction in air, including elementary steps: NO2* + NO3 => 2*NO2 + O O + NO + M => M + NO2* Key words: nitrogen oxides, NO3 radicals, atmospheric air, oxidation, He-Ne laser, electronically excited molecules, chain reaction, O atoms. Contacts: E-mail: vgfedotov47@inbox.ru, Е-mail: Elena.Fedotova.45@mail.ru Pp. 23-28.