Oxidation process induced by 2-mercaptopyrimidine at a mercury electrode |
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Authors: | García Calzón Josefa Angela Muñiz Alvarez Jesús Luis López Fonseca Juan Miguel |
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Institution: | Departamento de Química Física y Analítica, Universidad de Oviedo, E-33071 Oviedo, Asturias, Spain. |
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Abstract: | The oxidation process induced by 2-mercaptopyrimidine (RSH) at a hanging mercury drop electrode was studied in aqueous media by normal and cyclic voltammetry. The results indicate the formation of a weakly adsorbed HgSR complex according to the reaction Hg+RSH-->HgSR+e(-)+H+. When the surface excess of HgSR is high, a two-dimensional condensation takes place if the potential is positive enough, as proved by phase-sensitive ac and cyclic voltammetry. |
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Keywords: | 2-Mercaptopyrimidine Mercury electrode Voltammetric techniques Adsorption |
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