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Type: Artigo de periódico
Title: About the kinetics and mechanism of the reactions of 4-(2-pyridylaza) resorcinol, with Zn2+, Cu2+, and Zn2++Cu2+ equimolar mixtures, in aqueous solutions
Author: Rossi, AV
Tubino, M
Abstract: The kinetics and mechanism of the reactions between 4-(2-pyridylazo)-resorcinol and Zn-2+, Cu2+ and Zn2++Cu2+ equimolar mixtures were studied. The reactions were performed in aqueous solution (pH = 8.5, borate buffer) and monitored spectrophotometrically at 500 nm using stopped-flow technique. Spectral and kinetic data indicate that the Zn2++Cu2+ equimolar mixture behaves as an unique species and it can be attributed to the interactions of Zn2+ and of Cu2+ with water molecules in the aqueous solution. A mechanism is proposed and the rate constants are calculated.
Subject: PAR
Country: Brasil
Editor: Editora Unesp
Rights: aberto
Identifier DOI: 10.1590/S0100-46702003000100007
Date Issue: 2003
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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