Ozone decomposition in aqueous acetate solutions

Journal Article · Thu Jan 01 00:00:00 EST 1987 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100293a032· OSTI ID:6370414

Sehested, K; Holcman, J; Bjergbakke, E; Hart, E J

The acetate radical ion reacts with ozone with a rate constant of k = (1.5 +/- 0.5) x 10Z dmT mol s . The products from this reaction are CO2, HCHO, and O2 . By subsequent reaction of the peroxy radical with ozone the acetate radical ion is regenerated through the OH radical. A chain decomposition of ozone takes place. It terminates when the acetate radical ion reacts with oxygen forming the unreactive peroxy acetate radical. The chain is rather short as oxygen is developed, as a result of the ozone consumption. The inhibiting effect of acetate on the ozone decay is rationalized by OH scavenging by acetate and successive reaction of the acetate radical ion with oxygen. Some products from the bimolecular disappearance of the peroxy acetate radicals, however, react further with ozone, reducing the effectiveness of the stabilization.

• Research Organization: Risoe National Lab., Roskilde, Denmark
• OSTI ID: 6370414
• Journal Information: J. Phys. Chem.; (United States), Vol. 91:9
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
ACETATES
CHEMICAL REACTIONS
OZONE
DECOMPOSITION
RADIOLYSIS
RADICALS
AQUEOUS SOLUTIONS
CHEMICAL REACTION KINETICS
EXPERIMENTAL DATA
PULSED IRRADIATION
CARBOXYLIC ACID SALTS
CHEMICAL RADIATION EFFECTS
CHEMISTRY
DATA
DISPERSIONS
INFORMATION
IRRADIATION
KINETICS
MIXTURES
NUMERICAL DATA
RADIATION CHEMISTRY
RADIATION EFFECTS
REACTION KINETICS
SOLUTIONS
400201* - Chemical & Physicochemical Properties
400600 - Radiation Chemistry