Corrosion inhibition of mild steel using novel pyridine derivative in 1 M hydrochloric acid

A novel pyridine derivative was synthesized, and its corrosion inhibition effects on mild steel in a 1M hydrochloric acid environment were investigated by gravimetric techniques, The results demonstrated that the inhibitive performance increased with the increasing of inhibitor concentration. At 303...

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Published inKorose a ochrana materiálu Vol. 64; no. 2; pp. 59 - 64
Main Authors Al-Amiery, A.A., Shaker, L.M.
Format Journal Article
LanguageEnglish
Published Prague Sciendo 01.06.2020
De Gruyter Poland
Subjects
Adsorption
Atomic structure
Corrosion effects
Corrosion inhibitors
Gravimetry
Hydrochloric acid
Low carbon steels
Oxygen atoms
Surface chemistry
Toluene
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Summary:A novel pyridine derivative was synthesized, and its corrosion inhibition effects on mild steel in a 1M hydrochloric acid environment were investigated by gravimetric techniques, The results demonstrated that the inhibitive performance increased with the increasing of inhibitor concentration. At 303, the inhibition efficiency of pyridine derivative 4-hydroxy-3-(pyridin-2-ylaminomethyl)toluene accomplished 96.2% at the inhibitor concentration of 0.005 M. The mechanism of inhibition implicated the forming of a protective layer from inhibitor molecules on the surface of mild steel by a Langmuir adsorption isotherm. The presence of nitrogen and oxygen atoms in the structure of 4-hydroxy-3-(pyridin-2-ylaminomethyl)toluene confirmed by CHN-analysis revealed the adsorption of inhibitor molecules on the surface of mild steel surface.
Bibliography:ObjectType-Article-1
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content type line 14
ISSN:1804-1213
0452-599X
1804-1213
DOI:10.2478/kom-2020-0009