Abstract
The effect of the amino polycarboxylic acids, ethylene glycol-bis-(β-aminoethylether- N, N) tetraacetic acid, diethylenetriaminepentaacetic acid, ethylene diaminetetraacetic acid and nitrilotriacetic acid, on the corrosion behaviour of steel in pure H 2SO 4 and in Na 2SO 4 solutions of various pH values was studied by both weight loss and open-circuit potential measurements. It was shown that these organic substances behave bifunctionally; they inhibit the corrosion, presumably through adsorption in strong acidic media, and promote it above a certain pH value. The inhibition effectiveness is dependent on the molecular structure and the concentration of the organic substance. The promotion could be attributed to the formation and desorption of soluble complex ions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
