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Title: Palladium(II) catalysis on N-bromosuccinimide oxidation of ethylenediaminetetraacetic acid: A kinetic study
Authors: Tripathi, Rashmi
Upadhyay, Santosh K
Keywords: Palladium;Catalysis;Oxidation of ethylenediaminetetraacetic acid;Kinetics of N-bromosuccinimide
Issue Date: Jan-2007
Publisher: CSIR
IPC Code: B01J23/44, C07B33/00
Abstract: The kinetics of palladium(II) catalysed oxidation of ethylenediaminetetraacetic acid (EDTA) by N-bromosuccinimide (NBS) in acidic (HClO₄) as well as in alkaline medium have been investigated. The rate of reaction is always proportional to the concentration of NBS and catalyst. The order of reaction with respect to substrate was also found to decrease from unity to zero in acidic as well as in alkaline medium. The effect of succinimide on the rate of oxidation was negative in each case. In acidic medium, a negligible effect of H⁺ on the rate of oxidation has been observed while in alkaline medium a retarding effect of OH⁻ on the rate has been observed. The proposed mechanism involves the formation of {EDTA-Pdˡˡ} complex which has been verified spectrophotometrically.
Page(s): 64-70
ISSN: 0971–457X
Appears in Collections:IJCT Vol.14(1) [January 2007]

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