Action of Corrosion Inhibitors (Part 1)

Abstract

Corrosion inhibitors for metals are classified into three types, adsorption, oxidation, and precipitation-type ones. Action of the adsorption-type inhibitors is reviewed here. Electrostatic and chemical adsorptions using a polar group of the inhibitor molecule on metals, inhibition effects associated with the linear free energy relationship and the hard and soft acids and bases principle, and action of a non-polar group are described.