Ultraviolet spectrum and decay of the ozonide ion radical, O/sub 3//sup -/, in strong alkaline solution. [Electron beams]
Pulse radiolytic experiments in strong alkaline solution (pH 13-14) on the formation and the decay of the ozonide ion radical, O/sub 3//sup -/, are reported. The high-pressure cell technique was used applying 4 MPa of nitrous oxide and 0.1 MPa of oxygen. The spectrum of O/sub 3//sup -/ in the uv was measured and the decay product was identified as the peroxy radical ion, O/sub 2//sup -/. A complete mechanism for the decay of O/sub 3//sup -/ is based on the following reactions: O/sub 3//sup -/ + O/sup -/ ..-->.. 2O/sub 2//sup -/ and O/sub 2//sup -/ + O/sup -/ + H/sub 2/O ..-->.. O/sub 2/ + 2OH/sup -/. A computer simulation of the high-pressure system as well as the atmospheric-pressure oxygenated system supports this mechanism and yields a rate constant, k/sub (O/sub 3//sup -/ + O/sup -/)/ of (7.0 +- 1.0) x 10/sup 8/ dm/sup 3/ mol/sup -1/s/sup -1/. As a consequence of our mechanism, a k/sub (O/sub 2//sup -/ + O/sup -/)/ of (6.0 +- 1.0) x 10/sup 8/ dm/sup 3/ mol/sup -1/ s/sup -1/ is also derived from the computations.
- Research Organization:
- Risoe National Lab., Roskilde, Denmark
- OSTI ID:
- 6937949
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 86:11; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400600* -- Radiation Chemistry
ALKALI METAL COMPOUNDS
AMBIENT TEMPERATURE
BEAMS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
DATA
DECOMPOSITION
ELECTRON BEAMS
ELEMENTS
EXPERIMENTAL DATA
G VALUE
HYDROGEN COMPOUNDS
HYDROXIDES
INFORMATION
IRRADIATION
KINETICS
LEPTON BEAMS
NONMETALS
NUMERICAL DATA
OXYGEN
OXYGEN COMPOUNDS
OZONE
PARTICLE BEAMS
PEROXY RADICALS
PH VALUE
PULSED IRRADIATION
RADIATION CHEMISTRY
RADIATION EFFECTS
RADICALS
RADIOLYSIS
REACTION KINETICS
SODIUM COMPOUNDS
SODIUM HYDROXIDES
SPECTRA
ULTRAVIOLET SPECTRA
WATER