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Polarography of Pyridine 2 aldehyde 2 Pyridylhydrazone in solutionos of varying pH at a DME. Effect of surface Active substance

Authors: 
Ali Z. Abu Zuhri
J. Shalabi
Journal Name: 
Journal of the Chemical Society, Perkin Transactions 2
Volume: 
4
Issue: 
1
Pages From: 
499
To: 
502
Date: 
Tuesday, January 1, 1985
Abstract: 
The polarographic behaviour of pyridine-2-carbaldehyde 2-pyridylhydrazone(PAPH) at a dropping-mercury electrode was studied in aqueous Britton–Robinson buffers containing 50% ethanol. The polarograms consist of one wave in the acidic and alkaline medium. Two electrons are consumed in the splitting of the N–N bond to give-2-aminopyridine and pyridine-2-carbaldehyde. The adsorption effects of cationic, anionic, and non-ionic surfactants on the polargraphic waves of PAPH have been investigated. The kinetic parameters for the electrode reaction at different pH values have been computed.