Inhibitive Protection of Low-Carbon Steel in Citric Acid Solutions

Abstract

An effective mixture has been developed on the basis of the inhibitor IFKhAN-92 and KCNS to protect low-carbon steel in citric acid hot solutions. The proposed mixture inhibits the corrosion of steel in these solutions in a wide range of their concentrations (0.25÷2.0 М) and temperatures (20÷95°С). The effective inhibition of the corrosion of steel by the mixture under study is due to the strong retardation of the metal’s both electrode reactions