Polarographic Study of Nickel (II) Electrolytes with Malonic acid

Abstract

In this research we studied the mechanism of the reaction in the [Nickel(II)–Malonic acid–water] medium by using Electrochemical Methods (Polarography) proved that the particle which is reduced on The Mercury Drops Electrode is Nickel Malonics , and that reduction is a semi–reversible process, takes place by participation of two electrons (n=2) in a one stage mechanism at relatively high  cathodal polarizability. The half-wave potential reduction process of nickel ions with malonic acid is shifted compared with the hydrated ion reduction potential in all studied solutions, the amount of this shift is equilateral (≈30-35mv). Thus, this study could introduce a new electrolyte for painting with nickel which has good properties, free from defects.

Keywords: Nickel, Malonic acid, Potential,  Reduction,  polarizability.