Original scientific paper

Kinetic Studies of the Formation of Iron (III) Ethylenediaminetetraacetate-Hydrogen Peroxide Complex

M . Orhanović ; Department of Chemistry, State University of New York at Buffalo, N. Y . 14214, U.S. A.
R. G. Wilkins ; Department of Chemistry, State University of New York at Buffalo, N. Y . 14214, U.S. A.

Abstract

The formation of· a red-purple iron (III) ethylenediaminetetraacetate
mono hydrogen peroxide species obeys the kinetic express ion
rate= k LFe(EDTA) (OH)2 3-J [H 202] over the range pH 9.0-11.0.
The Arrhenius equation, k = 1.9 X 10 7 exp (-6,700/RT) holds and
at 25°, k = 2.5 X 10 2 M - 1 sec-1• An enhanced rate above pH = 11 .0
may be associated with enhanced reactivity of [Fe(EDTA) (0H)3] 4-
or H02-. A brief compar ison is made of the results with data for
pe roxidase and catalase reactions with hydrogen peroxide.

Keywords

Hrčak ID:

208080

URI

https://hrcak.srce.hr/208080

Publication date:

15.10.1967.

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