Processes of H/sub 2/O and NO/sub 2/ photodecomposition in the spectral region of lambda > 155 nm

Journal Article · Tue Jul 01 04:00:00 EDT 1986 · High Energy Chem. (Engl. Transl.); (United States)

OSTI ID:5074746

Pravilov, A N; Shul'pyakov, I O

The primary photolysis processes of H/sub 2/O and NO/sub 2/ molecules in the wavelength region of lambda > 155 nm have been investigated. It has been shown that in photolysis of H/sub 2/O the quantum yield of the formation of OH radicals is equal to 1.00 plus or minus 0.05. Upon photoexcitation of the NO/sub 2/ molecule in the region of lambda = 155-190 nm a dissociation into NO + O(/sup 3/P, /sup 1/D) takes place with a probability close to unity. Measurements have been made of the spectral dependences of the absolute quantum yields of the formation of O(/sup 3/P) and O(/sup 1/D) atoms in the photolysis of nitrogen dioxide.

• Research Organization: Sci-Res. Institute of Physics
• OSTI ID: 5074746
• Journal Information: High Energy Chem. (Engl. Transl.); (United States), Journal Name: High Energy Chem. (Engl. Transl.); (United States) Vol. 20:1; ISSN HIECA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500 -- Photochemistry
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ABSORPTION SPECTRA
AIR POLLUTION ABATEMENT
ATMOSPHERIC CHEMISTRY
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMISTRY
COLLISIONS
DECOMPOSITION
DISSOCIATION
ELEMENTS
FLUIDS
GASES
HYDROGEN COMPOUNDS
HYDROXYL RADICALS
KINETICS
MOLECULE COLLISIONS
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
PHOTON COLLISIONS
PHOTON-MOLECULE COLLISIONS
POLLUTION ABATEMENT
RADICALS
REACTION KINETICS
SPECTRA
VAPORS
WATER
WATER VAPOR
YIELDS