Effect of acidity level R-o(H) on the corrosion of steel in concentrated HCL solutions

Authors
El Ouafi, A Abed, Y Hammouti, B Kertit, S
Citation
A. El Ouafi et al., Effect of acidity level R-o(H) on the corrosion of steel in concentrated HCL solutions, ANN CHIM-SC, 26(5), 2001, pp. 79-84
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
ANNALES DE CHIMIE-SCIENCE DES MATERIAUX
ISSN journal
01519107 → ACNP
Volume
26
Issue
5
Year of publication
2001
Pages
79 - 84
Database
ISI
SICI code
0151-9107(200109/10)26:5<79:EOALRO>2.0.ZU;2-U
Abstract
The corrosion of a carbon steel in (0.5 - 9.0 M) HCl media using weight los s, electrochemical polarization and polarization resistance measurements wa s investigated. The corrosion data are discussed as function of the Strehlo w acidity function R-o(H) which is the extension of pH in concentrated solu tions. Weight loss, corrosion current densities and resistance polarization values show a linear behaviour with the R-o(H) acidity function. The corro sion potential-R-o(H) plot is also linear using the ferricinium (Fc(+)) / f errocene (Fc) reference electrode in concentrated acid solutions.