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Oxygen evolution as a critical test of mechanism in the ferric‐ion catalyzed decomposition of hydrogen peroxide
Author(s) -
Walling Cheves,
Cleary Michael
Publication year - 1977
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550090408
Subject(s) - chemistry , decomposition , hydrogen peroxide , catalysis , stoichiometry , kinetics , redox , oxygen , ferric , inorganic chemistry , reaction mechanism , ion , peroxide , chemical decomposition , photochemistry , organic chemistry , physics , quantum mechanics
The stoichiometry of O 2 evolution in the Fe 3 catalyzed decomposition of H 2 O 2 in dilute HClO 4 at high [Fe 3+ ]/[H 2 O 2 ] ratios is 2H 2 O 2 → 2H 2 O + O 2 with no deficiency indicating accumulation of an intermediate complex. This and the observed kinetics are shown to be consistent with a “redox chain” but not a “complex” mechanism for the reaction.