The kinetics of the oxidation of chromium(II), titanium(III), and vanadium(IV) by hydrogen peroxide and hydroxyl radicals
- 1 January 1972
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 12,p. 1273-1277
- https://doi.org/10.1039/dt9720001273
Abstract
The reaction rate constants of Mn++ H2O2 were measured for Mn+= CrII, TiIII, and VIV, using the stopped-flow technique, in perchloric and sulphuric acid media. These rate constants, for TIII and VIV were found to increase on increasing the pH in the range 0–2·5. The rate constants for the reaction of these metal ions with OH radicals were measured through competition with thiocyanate anions, using the pulse radiolysis technique. It was found that kMn++OH=(1·2 ± 0·2)× 1010, (3·0 ± 0·3)× 109, and (6·4 ± 0·4)× 108 M –1 s–1 for CrII, TiIII, and VIV respectively.Keywords
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