2015•International Journal of Corrosion and Scale InhibitionOpen access

Effect of hydrodynamic conditions on copper pitting corrosion inhibition in hydrocarbonate–chloride solutions by benzotriazole

Ekaterina Skrypnikova, Svetlana Kaluzhina

Abstract

It has been found that in hydrocarbonate-chloride solutions (pH = 8.4) benzotriazole inhibits copper pitting corrosion.Comparative results obtained on stationary and rotating disc electrode have shown that rotation stabilizes the metal/electrolyte systems.Under drastic hydrodynamic conditions, the benzotriazole concentration required for full suppression of copper pitting corrosion was reduced 10-fold on a rotating disc.

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Key concepts: Benzotriazole, Copper, Erosion corrosion of copper water tubes, Corrosion, Pitting corrosion, Chloride, Chemistry, Corrosion inhibitor