Absolute rate constant of the reaction OH + H/sub 2/O/sub 2/. -->. HO/sub 2/ + H/sub 2/O from 245 to 423 K

Journal Article · Thu Jun 26 04:00:00 EDT 1980 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100450a001· OSTI ID:6951874

Keyser, L F

The absolute rate constant of the reaction between the hydroxyl radical and hydrogen peroxide was measured by using the discharge-flow resonance fluorescence technique at total pressures between 1 and 4 torr. At 298 K the result is (1.64 +- 0.32) x 10/sup -12/ cm/sup 3/ molecule/sup -1/s/sup -1/. The observed rate constant is independent of pressure, surface to volume ratio, the addition of vibrational quenchers, and the source of OH. The temperature dependence has also been determined between 245 and 423 K; the resulting Arrhenius expression is k (cm/sup 3/ molecule/sup -1/s/sup -1/) = (2.51 +- 0.6) x 10/sup -12/ exp(-126 +- 76/T).

• Research Organization: California Inst. of Tech., Pasadena
• OSTI ID: 6951874
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 84:13; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400600 -- Radiation Chemistry
CHEMICAL REACTIONS
DATA
EXPERIMENTAL DATA
HYDROGEN COMPOUNDS
HYDROGEN PEROXIDE
HYDROXYL RADICALS
INFORMATION
KINETICS
NUMERICAL DATA
OXYGEN COMPOUNDS
PEROXIDES
RADICALS
REACTION KINETICS