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Title: Kinetics and mechanism. of oxidation of 1,4-benzenediol by trisoxalatocobaltate(III) ion in aqueous acid medium
Authors: Iyun, J Femi
Lawai, H Muda
Olagbemiro, O Timothy
Issue Date: Jun-1995
Publisher: NISCAIR-CSIR, India
Abstract: At 25.0±0.1°C and l=1.0 mol dm-3 (NaCIO4) oxidation of 1,4-benzenediol by trisoxalatocobaltate (III) conforms to the rate law: -1/2 d[Co(ox)3]/dt= k2 [CO(ox)3][H2O] (ox=oxalate ion, H2O=1,4-benzenediol (hydroquinone) with k2=(1.65±0.16)x10-3 mol-1 dm3 s-I. The reaction is acid independent in the range O.02≤[H+]≤0.50 mol dm-3. The absence of both spectroscopic and kinetic evidence of complex formation and the non-conformity of our results with the Michaelis-Menten equation suggest that this reaction most probably occurs by outer sphere mechanism.
Page(s): 446-448
ISSN: IJC-A Vol.34A(06) [June 1995]
Appears in Collections:IJC-A Vol.34A(06) [June 1995]

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