Theses and Dissertations - UTB/UTPA
A Proposal for The Mechanism of The Iron-Ascorbate, Fenton, and Hydroxyl Radical-Quenching Series
Date of Award
Master of Science (MS)
Dr. Philip Delassus
Dr. Elamin E. Ibrahim
Dr. Narayan Bhat
The Fenton reaction between [Fe(II)] and [HOOH] is observed in the presence of ascorbic acid, [AscH-], during [Fe(III)] and HO• reduction; this is done as part of consecutive redox reactions between [Fe(III)] and [Fe(II)]. As a result, the rate orders with respect to [Fe(III)], ascorbic acid, and [HOOH] are of (approximately) 2nd, 1st, and 4 th order, respectively. However, the rate constants for each reaction in this study show patterns when measured against solution pH; empirically, reactions proceed faster at smaller pH and vice versa.
University of Texas-Pan American
Copyright 2010 Jonathan Velasco. All Rights Reserved.