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Interconversion of iron(III) hydroxy complexes in seawater

Authors
Journal
Marine Chemistry
0304-4203
Publisher
Elsevier
Publication Date
Volume
8
Issue
4
Identifiers
DOI: 10.1016/0304-4203(80)90017-1

Abstract

Abstract Interconversion rates of the mononuclear ferric iron species Fe(OH) 3 0 and Fe(OH) 2 + are derived and their implications for the behavior of these species in seawater are examined. The previously reported formation constant for Fe(OH) 3 0 and its claimed extreme adsorptive reactivity in seawater are shown to be mutually inconsistent. Although Fe(OH) 3 0 is probably a stoichiometrically minor dissolved iron species, its rapid formation from Fe(OH) 2 + could substantially enhance the rates of heterogeneous reaction rates of the [Fe(OH) 2 + + Fe(OH) 3 0] pool if the latter species is very reactive.

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