ISSN:
0538-8066
Keywords:
Chemistry
;
Physical Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The temperature dependence of the oxidation kinetics of Fe2+ by O3 at pH 0-3 was studied by stopped-flow technique in the temperature range 5-40°C. Activation parameters of the reactions involved in formation and decay of the ferryl ion (iron(IV)), FeO2+ are determined. The reaction of Fe2+ + FeO2+ was found to branch into two channels forming iron(III)-dimer, Fe(OH)2Fe4+, and Fe3+. The yield of the dimer, Fe(OH)2Fe4+, increases with temperature on the expense of the Fe3+ yield. On the basis of the overall rate constant and relative yield of Fe(OH)2Fe4+ the activation energy is determined for both channels. The activation parameters of the hydrolysis of the ferryl ion and its reaction with H2O2 were also determined. © 1997 John Wiley & Sons, Inc. Int J Chem Kinet 29: 17-24, 1997.
Additional Material:
8 Ill.
Type of Medium:
Electronic Resource
