The Catalytic Decomposition of Hydrogen Peroxide by the Iodine-Iodide Couple at 25°

Liebhafsky, H. A.

doi:10.1021/ja01344a011

Cited by 65 publications

(62 citation statements)

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“…It is already known that the decomposition of hydrogen peroxide follows first order kinetics with respect to itself [1,[3][4][5]7,8,10,11]. Also, it has been shown that the concentration of hydrogen peroxide at the termination of the oscillatory period is approximately the same in every rtm (or oscillogram) performed at different initial hydrogen peroxide concentrations with constant other parameters [7,8,11].…”

Section: Resultsmentioning

confidence: 99%

Methods to determine activation energies for the two kinetic states of the oscillatory Bray-Liebhafsky reaction

Anić

Kolar-Anić

Kőrös

1997

React Kinet Catal Lett

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Section: Resultsmentioning

confidence: 99%

Methods to determine activation energies for the two kinetic states of the oscillatory Bray-Liebhafsky reaction

Anić

Kolar-Anić

Kőrös

1997

React Kinet Catal Lett

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“…If additional side reactions occur, then less OH is available for reaction (43), which implies less CH3 is created. This in turn reduces the production of CH3I in Eq.…”

Section: Organic Iodide In Aqueous Solutionmentioning

confidence: 99%

Models of iodine behavior in reactor containments

Weber¹,

Beahm²,

Kress³

1992

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Much of the work described in this report was done under the sponsorship of the U.S. Nuclear Regulatory Commission to enhance the ability to predict releases and consequences of LWR severe accidents. Thus, considerable credit is due to the NRC Office of Nuclear Regulatory Research, and to technical monitors Lisa Chan, Tom Walker, and Richard Lee. The final publication, however, has been supported by the ORNL Research Reactors Division in order to adequately document models that have been used in the safety analysis of the High Flux Isotope Reactor. The authors are especially grateful to Lamar Lepard, David Cook, and George Flanagan of Research Reactors Division for this sponsorship of this work. Finally, thanes go to Lindy Norris for her diligent efforts in typing and revising the manuscript. vii _CT Models are developed for many phenomena of interest concerning iodine behavior in reactor containments during severe accidents. Processes include speciation in both gas and liquid phases, reactions with surfaces, airborne aerosols, and other materials, and gas-liquid interface behavior. Although some models are largely empirical formulations, every effort has been made to construct mechanistic and rigorous descriptions of relevant chemical processes. Ali are based on actual experimental data generated at the Oak Ridge National Laboratory (ORNL) or elsewhere, and, hence, considerable data evaluation and parameter estimation are contained in this study. No application or encoding is attempted, but each model is stated in terms of rate processes, with the intention of allowing mechanistic simulation. Taken together, this collection of models represents a best estimate iodine behavior and transport in reactor accidents.

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“…Since the pioneering work of Bray and Liebhafsky (BL) on the oscillation reaction of iodine and hydrogen peroxide, the oxidation reaction of iodine to iodate has received significant attention [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Study of the autocatalytic chlorate–triiodide reaction in acidic and neutral media

Mohammad

Awad

Ohsaka

2010

Journal of Advanced Research

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The oxidation reaction of triiodide, I 3 − , by chlorate is investigated in a slightly acidic and neutral media. The reaction was verified and monitored both potentiometrically and spectrophotometrically. Generally, a slow linear decay preceded by an induction period was observed for the triiodide concentration following the addition of chlorate. The induction period is likely to be related to the time required for the generation of suitable concentrations of plausible intermediates (HIO and HIO 2 ), which are assumed to auto-catalyse the reaction. We examined the effect of acidity and concentrations of both chlorate and triiodide on the induction time for this reaction. The acidity of the medium influenced the induction period, while the oxidation of iodide by chlorate competed with that of iodine as the medium acidity increased, making the reaction more complicated. Therefore, a suitable pH is highly recommended for studying the chlorate-triiodide reaction. A plausible mechanism involving the HIO, HIO 2 , and I 2 O species is proposed.

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The Catalytic Decomposition of Hydrogen Peroxide by the Iodine-Iodide Couple at 25°

Cited by 65 publications

References 1 publication

Methods to determine activation energies for the two kinetic states of the oscillatory Bray-Liebhafsky reaction

Methods to determine activation energies for the two kinetic states of the oscillatory Bray-Liebhafsky reaction

Models of iodine behavior in reactor containments

Study of the autocatalytic chlorate–triiodide reaction in acidic and neutral media

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