Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1469240 | Corrosion Science | 2013 | 11 Pages |
Effect of α,β-unsaturated aldehydes on the corrosion of mild steel in solutions of hydrochloric and sulfuric acids was investigated using gravimetric, voltammetric and chromato-mass spectrometry techniques. General regularities of corrosion and electrochemical behavior of these compounds in solutions of mineral acids are established. The role of the chemical transformation of α,β-unsaturated aldehydes in the inhibition of corrosion is shown.
► The protective effect of aldehydes increases with increasing unsaturation. ► Aldehydes with an unsaturated α,β-bond shielded by a bulky group are not inhibitors. ► Aldehydes in solutions of H2SO4 participate in the electrode reactions of steel. ► Cinnamic aldehyde can form protective film on the surface of the corroding steel.