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Type: Artigo de periódico
Title: About The Kinetics And Mechanism Of The Reactions Of 4-(2-pyridylazo)- Resorcinol, With Zn2+, Cu2+ And Zn2++cu 2+ Equimolar Mixtures, In Aqueous Solutions
Author: Rossi A.V.
Tubino M.
Abstract: The kinetics and mechanism of the reactions between 4-(2-pyridylazo)- resorcinol and Zn2+, Cu2+ and Zn2++Cu 2+ 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.
Rights: aberto
Identifier DOI: 
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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