Influence of anion adsorption on the action of inhibitors on the acid corrosion of iron and cobalt

✍ Scribed by Z.A. Iofa; V.V. Batrakov; Cho-Ngok-Ba

• Publisher: Elsevier Science
• Year: 1964
• Tongue: English
• Weight: 648 KB
• Volume: 9
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(64)80091-8

✦ Synopsis

This conclusion does not apply, however, to some inorganic anions,lv8 which are chemisorbed on iron and cobalt and increase the overvoltage of these electrochemical reactions, inhibiting, thereby, the acid corrosion of the above metals.

7 With aliphatic sulpho-acids having a long carbon chain, stimulation may change into inhibition due to a screening effect.

$ q,-potential against a hydrogen electrode in the same acid solution. Q We express our deep gratitude to Prof. N. D. Greene, New York, who kindly provided us with high-purity iron. This iron contains about 0.01 per cent impurities, including <5 x 1O-4% sulphur.