RESEARCH PAPER
Synthesis, Electrochemical Oxidation of 2-Hydroxy-5-Nitrophenyl Azo1-(2,5-Dichloro-4-Sulfophenyl)-3-Methyl-5- Pyrazolone Reagent at Mercury Electrode
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CORRESPONDING AUTHOR
Hussain J. Mohammed
Department of Chemistry, Faculty of Science, Kufa University, P.O. Box (21), Iraq
Department of Chemistry, Faculty of Science, Kufa University, P.O. Box (21), Iraq
Publication date: 2018-12-25
Eurasian J Anal Chem 2018;13(6):emEJAC181157
KEYWORDS
ABSTRACT
2-hydroxy-5-nitrophenylazo1-(2,5-dichloro-4-sulfophenyl)-3-methyl-5-pyrazol- one (2HNAP) was synthesized. The solid state of reagent isolated and characterized by FT-IR, 1H-NMR and mass spectroscopy. The electrochemical oxidation of reagent at a mercury electrode was studied by differential pulse polarography in a wide pH range. Electrolyte with pH less than 10 diffusion of control, pH-dependent process that involves the transfer of one electron and one proton from the OH group
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