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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Hussain J. Mohammed
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
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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