Electro analytical studies on ethoxylation of o-Nitrophenol

Ortho-Nitrophenol (1-hydroxy-2-nitrobenzene), a yellow crystalline solid (m.p. 46°C). It is a precursor to the rice herbicide fluorodifen and the pesticide parathion. The literature on various chemical reactions of o-Nitrophenol is scattered. Only a few works have been done on electrochemical studies of o-Nitrophenol. This work is concentrated on the cyclic voltammetric studies of o-Nitrophenol. Cyclic voltammograms were recorded by varying pH, working electrode and scan rate. Multiple scan studies have also been done. The system showed variations in the working potentials (anodic peak voltage) while the reaction conditions such as pH, working electrode, are changed. These studies also revealed that the ethoxylation of o-Nitrophenol is diffusion controlled at all mentioned above conditions. It is also found out that o-Nitrophenol is not forming polymers on the working electrode.