p-nitrosalicylic acid의 전해환원에 의한 PAS의 합성과 Polarograph연구

Polarographic Studies on Electrochemical Reduction of p-Nitrosalicylic Acid and the Electrochemical Synthesis of p-Aminosalicylic Acid

Although a considerable amount of work has ben carried out, on the reduction of p-nitrosalicylic acid with Pb, Ni, Cu and Hg cathodes, published results do not proceeded the synthesis of p-aminosalicylic acid. In order to get the reduction potential and the mechanism of reduction, therefore, the electrode reactions occurring during "polarographic reduction" have been studied more fully. As a result, the author found that p-aminosalicylic acid (PAS) can be only produced in a HCl-ethanol solution using Sn cathode with the current density of 4.0A/$dm^{2}$, at 40-$50^{\circ}$.