Rate constants of the reaction of the hydrated electron and hydroxyl radical with ozone in aqueous solution

Journal Article · Thu Jan 21 04:00:00 EST 1982 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100391a024· OSTI ID:5689380

Bahnemann, D; Hart, E J

Absolute rate constants for the reaction of the hydrated electron and hydroxyl radical with ozone in aqueous solution have been determined by using pulse radiolysis techniques. The rate constant, k(e/sub aq//sup -/ + O/sub 3/) = (3.60 +- 0.14) x 10/sup 10/ dm/sup 3/ mol/sup -1/ s/sup -1/, was measured in the pH range 4.1 to 6.05 by following the decay of e/sub aq//sup -/ at 600 nm. The rate constant k(OH. + O/sub 3/) = (3.02 +- 0.25) x 10/sup 9/ dm/sup 3/ mol/sup -1/ s/sup -1/, was obtained by a competition method at pH 6.7 with acetate ions as the OH. radical scavengers. The ozone concentration for both studies varied from 0.05 x 10/sup -3/ to 0.50 x 10/sup -3/ mol dm/sup -3/.

• Research Organization: Hahn-Meitner-Institut fuer Kernforschung GmbH, Berlin, Germany
• OSTI ID: 5689380
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 86:2; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ACETATES
ACETIC ACID
ALKALI METAL COMPOUNDS
AQUEOUS SOLUTIONS
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
DATA
DECOMPOSITION
DISPERSIONS
ELECTRONS
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FERMIONS
HYDROGEN COMPOUNDS
HYDROXYL RADICALS
INFORMATION
KINETICS
LEPTONS
MIXTURES
MONOCARBOXYLIC ACIDS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
OZONE
PH VALUE
RADIATION CHEMISTRY
RADIATION EFFECTS
RADICALS
RADIOLYSIS
REACTION KINETICS
SODIUM COMPOUNDS
SOLUTIONS
SOLVATED ELECTRONS
WATER