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 00:00:00 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), Vol. 84:13
• Country of Publication: United States
• Language: English

Related Subjects

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