A new bipyrazolic compound as corrosion inhibitor of armco iron in 1M HCl medium

Authors
Touhami, F Hammouti, B Aouniti, A Kertit, S
Citation
F. Touhami et al., A new bipyrazolic compound as corrosion inhibitor of armco iron in 1M HCl medium, ANN CHIM-SC, 24(8), 1999, pp. 581-586
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
ANNALES DE CHIMIE-SCIENCE DES MATERIAUX
ISSN journal
01519107 → ACNP
Volume
24
Issue
8
Year of publication
1999
Pages
581 - 586
Database
ISI
SICI code
0151-9107(199910)24:8<581:ANBCAC>2.0.ZU;2-U
Abstract
The inhibitory effect of the new synthesized bipyrazolic compound 1,3-Bis(3 ,5-dichloromethylpyrazolyl) propane (BDCMPP) on the corrosion of Armco Iron in 1M HCl medium has been studied by weight loss, electrochemical polarisa tion and impedance studies. The maximum inhibition efficiency reached was a bout 90% at 10(-3)M. The inhibition effect is caused by geometrically block ing the surface of iron by adsorbed inhibitive molecules which follow an S- shaped adsorption isotherm.