Surface and thermodynamic parameters of some cationic corrosion inhibitors
Abstract
Four cationic corrosion inhibitors were prepared having the general formula ClRN+H2(CH2)nN+H2RCl, where R is a hydrogen atom or benzyl group, n = 8 or 10. Determines the critical micelle concentration (CMC) at 38, 48 and 58°C. Also investigates structural effects on the CMC, maximum surface excess (Γmax), and minimum area per molecule (Amin) at the aqueous solutions/air interface. Shows that these inhibitors provided a powerful corrosion inhibition of steel in sulphuric acid solution at temperatures up to 78°C. Also indicates that the alkylation process improved surface and thermodynamic properties, consequently attaining better inhibition effects.
Keywords
Citation
Abdel‐Hamid, Z. (1997), "Surface and thermodynamic parameters of some cationic corrosion inhibitors", Anti-Corrosion Methods and Materials, Vol. 44 No. 6, pp. 389-392. https://doi.org/10.1108/00035599710185449
Publisher
:MCB UP Ltd
Copyright © 1997, MCB UP Limited