Specific interactions in reversed micelles: Oxidation of Fe(bpy)32+ by S2O82− in AOT-oil-water microemulsions

✍ Scribed by Pilar LóPez; Amalia RodríGuez; Carlos GóMez-Herrera; Francisco SáNchez; Marí Luisa Moyá

• Publisher: John Wiley and Sons
• Year: 1995
• Tongue: English
• Weight: 509 KB
• Volume: 27
• Category: Article
• ISSN: 0538-8066
• DOI: 10.1002/kin.550270602

✦ Synopsis

Abstract

The oxidation of Fe(bpy)~2~^2+^ by peroxodisulphate (bpy = 2,2′‐bipyridine) has been studied in a variety of sodium bis(2‐ethylhexyl)sulfosuccinate(aerosol‐OT or AOT)‐oil‐water microemulsions by changing the nature of the oil phase, the surfactant concentration, and the molar ratio w = [H~2~O]/[AOT]. Kinetic results show that the influence of surfactant concentration is due to a dilution effect. On the other hand, the comparison between the reaction rate in conventional aqueous solution with that in AOT w/o microemulsions seems to indicate that the iron(II) species is distributed between the aqueous phase and the interphase. © 1995 John Wiley & Sons, Inc.