HYDROGEN YIELDS IN THE RADIOLYSIS OF AQUEOUS HYDROGEN PEROXIDE

Journal Article · Mon May 01 04:00:00 EDT 1961 · Journal of Physical Chemistry (U.S.)

DOI:https://doi.org/10.1021/j100823a024· OSTI ID:4068202

Anderson, A R; Hart, E J

Hydrogen and oxygen yields are determined for the gamma and deuteron radiolysis of squeous hydrogen peroxide over a concentration range from pure water to 96% hydrogen peroxide by volume. The observed decrease in hydrogen yields with increasing concentration of hydrogen peroxide is in good agreement with the Flanders-Fricke computations on the one radical diffusion model for both gamma and deuteron radiolysis. In order to fit the experimental data to the theoretical curve a rate constsnt for the scavenging reaction, H + H/sub 2/O/sub 2/, is used in neutral solution about five times the value in acid solution (0.8 N H/sub 2/SO/sub 4/). This difference in rate constants is consistent with the existence of two reducing species in the radiolysis of water. The observed yields of oxygen are proportional to STAH/sub 2/O/sub 2/! /sup 1/2/ up to hydrogen peroxide concentrations of about 3 M for the deuteron radiolysis of neutral solutions and for the gamma radioly sis of both acid and neutral solutions; in acid solution, however, the oxygen yields are considerably lower. This increased stability in acid solution probably is associated with a change in the propagation step in the chain decomposition of hydrogen peroxide. (auth)

• Research Organization: Argonne National Lab., Ill.
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-020756
• OSTI ID: 4068202
• Journal Information: Journal of Physical Chemistry (U.S.), Journal Name: Journal of Physical Chemistry (U.S.) Vol. Vol: 65; ISSN JPCHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACIDS
CHEMISTRY
DECOMPOSITION
DEUTERONS
DIFFUSION
FREE RADICALS
GAMMA RADIATION
HYDROGEN
HYDROGEN PEROXIDES
OXYGEN
PRODUCTION
QUANTITATIVE ANALYSIS
RADIATIONS
SOLUTIONS
STABILITY
SULFURIC ACID
WATER