Fig. 1: Typical E vs. time curves obtained during the oxidation by air of Fe(OH)2 aqueous suspensions, for Q ratios equal to 1, 1.136, 0.88.
a Curves obtained in the absence of Cr(III) species. b Curves obtained with Cr(III) = 8 at.%. The circles point out in each curve the time tf corresponding to the end of the oxidation reaction.
