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A kinetic study of the osmium(Vlll) catalyzed reduction of octacyanomolyb-date(V) and octacyanotungstate(V) ions by selenium(IV) in an alkaline medium

✍ Scribed by G. Leipoldt; C.R. Dennis; A.J. Van Wyk; L.D.C. Bok

Publisher: Elsevier Science
Year: 1978
Tongue: English
Weight: 276 KB
Volume: 31
Category: Article
ISSN: 0020-1693
DOI: 10.1016/s0020-1693(00)94999-5

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✦ Synopsis

The kinetics of the osmium( VIII) catalyzed reduction of octacyanomolybdate( V) and octacyana tungstate(V) ions by Se(IV) have been studied in an alkaline medium. The reaction is first order with respect to M(CN)i-ions (M = MO, W) and the osmium( VIII) catalyst.

The second order reaction rate constants are 4.30 X IO4 M-' min." and 2.60 X IO3 M-' see-' at 293 K respectively. A reaction mechanism is proposed.

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A kinetic study of the osmium(VIII) catalyzed oxidation of tellurium(IV) by Octacyanomolybdate(V) and octacyanotungstate(V) ions in an alkaline medium

✍ J.G. Leipoldt; C.R. Dennis; A.J. van Wyk; L.D.C. Bok 📂 Article 📅 1979 🏛 Elsevier Science 🌐 English ⚖ 291 KB

## The kinetics of the osmium( VIII) catalyzed oxidation of Te(IV) by octacyanomolybdate( V) and octacyanotungstate(V) tins have been investigated in an alkaline medium. The reactions are first order with respect to M(CN)i-ion (M = MO, W) and catalyst concentrations. The second order reaction rate