Zirconium(IV) catalysis in perborate oxidation of iodide
โ Scribed by Karunakaran, C. ;Muthukumaran, B.
- Publisher
- Springer
- Year
- 1997
- Tongue
- English
- Weight
- 318 KB
- Volume
- 60
- Category
- Article
- ISSN
- 0133-1736
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๐ SIMILAR VOLUMES
Perborate in aqueous solution generates H202; in its presence the molybdenum(VI) catalysed oxidation of iodide ion is first order with respect to the oxidant and catalyst, and is independent of [I-] and [H +]. Kinetic studies point to peroxymolybdenum(VI) species as the oxidizing species.
phosphine oxidea can be reduced by triethoxysilane, or more cmvcniently polymetbylhydrosiloxane, and catalytic titamiu~~~ (IV) isopropoxide. and provides a system for the eftident one-pot generation of phosphonium salts; the reduction occurs with retention of configuration at phcx3phorus We recentl
Rate of oxidation of acetophenones by Ce(IV) in aqueous acetic acid 80: 20 ( v , ) either slows down or remains constant over a range of cetyltrimethyl ammonium bromide (CTAB) concentration exceeding the cmc value. The rate is then found to increase sharply as the surfactant concentration increases
This paper focus on the mechanism of zirconium oxidation at 850ยฐC by X-ray diffraction (XRD) and the interactions between chemical (oxide growth, phase proportion) and physical processes (oxide scale texture, mechanical stresses). The structural gradients in the oxide scale composed of monoclinic Zr