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Corrosion inhibition of mild steel by schiff base compounds in various aqueous solutions: part 1 |
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| Authors: | H Shokry M Yuasa I Sekine RM Issa HY El-baradie GK Gomma |
| Affiliation: | 1 Department of Industrial Chemistry, Faculty of Science and Technology, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan 2 Institute of Colloid and Interface Science, Science University of Tokyo, 1-3 Kagurazaka, Shinjuku, Tokyo, 162-8601, Japan 3 Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt 4 Department of Chemistry, Faculty of Education, Kafr El-Sheikh, Tanta University, Tanta, Egypt |
| Abstract: | The corrosion inhibition by Schiff base compounds derived from diamines and o-hydroxy, o-methoxy aromatic aldehydes was investigated by weight loss, electrochemical measurements and surface analysis of SS 400 in various aqueous solutions such as tap water (LC), concentrated tap water (HC) and HCl solutions. The maximum inhibition efficiency (η) of N,N′-bis (salicylaldehyde)-1,12-diaminododecane (Saldn) for SS 400 in HCl solution approached 93%. The adsorption of Saldn on mild steel in HCl solution was obeyed Langmuirs isotherm. |
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