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
- Journal Information:
- Int. J. Chem. Kinet.; (United States), Vol. 7:Suppl. 1; Conference: Symposium on chemical kinetics data for the upper and lower atmosphere, Warrenton, VA, USA, 15 Sep 1974
- Country of Publication:
- United States
- Language:
- English
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·
OSTI ID:7083474
+5 more
Related Subjects
54 ENVIRONMENTAL SCIENCES
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
NITROUS ACID
PHOTOLYSIS
AIR POLLUTION ABATEMENT
ALKENES
CARBON MONOXIDE
CHEMICAL REACTION KINETICS
EARTH ATMOSPHERE
ENVIRONMENTAL EFFECTS
HYDROPEROXY RADICALS
HYDROXYL RADICALS
MEASURING METHODS
NITRIC OXIDE
PHOTOCHEMICAL OXIDANTS
SULFUR DIOXIDE
SYNERGISM
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
DECOMPOSITION
HYDROCARBONS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
RADICALS
REACTION KINETICS
SULFUR COMPOUNDS
SULFUR OXIDES
500100* - Environment
Atmospheric- Basic Studies- (-1989)
400500 - Photochemistry
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
NITROUS ACID
PHOTOLYSIS
AIR POLLUTION ABATEMENT
ALKENES
CARBON MONOXIDE
CHEMICAL REACTION KINETICS
EARTH ATMOSPHERE
ENVIRONMENTAL EFFECTS
HYDROPEROXY RADICALS
HYDROXYL RADICALS
MEASURING METHODS
NITRIC OXIDE
PHOTOCHEMICAL OXIDANTS
SULFUR DIOXIDE
SYNERGISM
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
DECOMPOSITION
HYDROCARBONS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
RADICALS
REACTION KINETICS
SULFUR COMPOUNDS
SULFUR OXIDES
500100* - Environment
Atmospheric- Basic Studies- (-1989)
400500 - Photochemistry