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Naturally Occuring Organic Substances as Corrosion Inhibitors for mild steel in acid medium

✍ Scribed by Dr. M. A. Abdel Rahim; Hanaa B. Hassan; M. W. Khalil

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
440 KB
Volume
28
Category
Article
ISSN
0933-5137

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✦ Synopsis

Abstract

Inhibition of the corrosion of mild steel in H~2~SO~4~ by amino acids was studied by measuring the Tafel polarization curves. Nineteen different naturally occuring amino acids were used as corrosion inhibitors. Two‐site adsorption model was proposed to explain the adsorption of some amino acids on the metal surface. At 1 × 10^−4^M concentration of inhibitor, the best corrosion inhibition was obtained with the sulphur‐containing amino acids. Other amino acids gave various corrosion inhibition efficiency depending or their structure.

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