Inhibition of Corrosion of structural steels (St3)

Issue 25(4) 2020
Pages 40-47

B.N. Driker, Ural State Forest Engineering University, Ekaterinburg, Russian Federation

A.A. Protazanov, Ural State Forest Engineering University, Ekaterinburg, Russian Federation

N.V. Tsirulnikova, Institute of Chemical Reagents and Highly Pure Chemicals of the National Research Center” Kurchatov Institute (NRC Kurchatov Institute – IREA), Moscow, Russian Federation

Y.A. Gorbatenko, Ural State Forest Engineering University, Ekaterinburg, Russian Federation


Keywords: composition, oxyethylidene diphosphonic and nitrilotrimethylenephosphonic acids, ratio of components, corrosion inhibitor, efficiency assessment

doi:10.31615/j.corros. prot. 2020.98.4-5.

 

Compositions based on hydroxyethylidene diphosphonic and nitrilotrimethylenephosphonic acids with alkali earth metals (Ca, Mg) are studied as corrosion inhibitors. It is found that the studied compositions are not inferior to their zinc counterparts as regards their corrosion inhibition efficiency and can be used in two-circuit cooling systems.