Photolysis of gaseous nitrous acid: a technique for obtaining kinetic data on atmospheric photooxidation reactions
Conference
·
· Int. J. Chem. Kinet.; (United States)
OSTI ID:7083474
The photolysis of gaseous nitrous acid in nitrogen/oxygen mixtures at 760 torr pressure was investigated. The major reaction occurring during absorption by HONO in the near ultraviolet was the dissociation of the acid into hydroxyl radicals and nitric oxide. Nitrous acid photolysis provides a useful source of OH radicals for kinetic studies under conditions similar to those prevailing in the lower atmosphere. With the addition of a large excess of carbon monoxide, the photolysis can also provide a source of hydroperoxyl radicals. Reaction rate constants at 300/sup 0/K and 1 atmosphere pressure are given for the photolysis of HONO after the addition of CO, sulfur dioxide, and some simple olefins.
- Research Organization:
- Atomic Energy Research Establishment, Harwell, Eng.
- OSTI ID:
- 7083474
- Conference Information:
- Journal Name: Int. J. Chem. Kinet.; (United States) Journal Volume: 7:Suppl. 1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500 -- Photochemistry
500100* -- Environment
Atmospheric-- Basic Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
ALKENES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DECOMPOSITION
EARTH ATMOSPHERE
ENVIRONMENTAL EFFECTS
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROPEROXY RADICALS
HYDROXYL RADICALS
INORGANIC ACIDS
KINETICS
MEASURING METHODS
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
NITROUS ACID
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL OXIDANTS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADICALS
REACTION KINETICS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SYNERGISM
400500 -- Photochemistry
500100* -- Environment
Atmospheric-- Basic Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
ALKENES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DECOMPOSITION
EARTH ATMOSPHERE
ENVIRONMENTAL EFFECTS
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROPEROXY RADICALS
HYDROXYL RADICALS
INORGANIC ACIDS
KINETICS
MEASURING METHODS
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
NITROUS ACID
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL OXIDANTS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADICALS
REACTION KINETICS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SYNERGISM