✦ LIBER ✦

The reduction of different non-metallic reactants at the mercury/electrolyte interface inhibited by trialkylphosphine oxides

✍ Scribed by J. Dittrich; R. Philipp; H.-D. Dörfler; E. Müller

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 290 KB
Volume: 32
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(87)85017-x

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✦ Synopsis

The reduction of HJOI, HBrOs and S,Oi-in the presence of hexyldiethylor octyldimethylphosphine oxide was studied dc polarographically at high surfacecoverages. Linear relationships between the logarithm of the rate constants and the film pressure of the surfactants were observed. From the slopes crosssectional areas of the activated complexes of the inhibited electrode reactions could be determined. In the case of HJOJ, HBrOr and $0: -reduction in alkaline solution the reactant seems to pass the adsorption layer without its hydratation shell, whereas the reduction of SrOi-in acid and neutral solutions apparently involves a mixed electron-ion transfer mechanism.

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