FICUS CARICA AND OLIVE LEAVES AS ENVIRONMENTAL FRIENDLY CORROSION INHIBITORS FOR ZINC IN HCL SOLUTION.

Authors

SEHAM ABDEL MOTAAL, Faculty of Applied Science, Umm Al-Qura University, Makkah, KSA
NOHA AL-QASMI, Faculty of Applied Science, Umm Al-Qura University, Makkah, KSA

Corresponding Author

ABDEL MOTAAL, SEHAM

Document Type

Original Article

Subject Areas

Chemistry

Keywords

zinc; Ficus; olive; acid medium; Inhibitor; Polarization

Abstract

The inhibiting action of Ficus carica and Olive extracts on the corrosion process of zinc in 2.0 M HCl solution has been investigated by weight loss, open –circuit potential and potentiodynamic polarization measurements. The results revealed that, the highest efficiency (IE%) was observed at 20.0 g/l of inhibitor. Langmuir isotherm was investigated to clarify the nature of adsorption. The values of are low revealed to a physical adsorption of the extracts on the zinc surface. The effect of temperature range (25-55ºC) supporting the proposed physical adsorption. Electrochemical behaviour indicated that the extract act as anodic- type inhibitors.

How to Cite This Article

ABDEL MOTAAL, SEHAM and AL-QASMI, NOHA (2010) "FICUS CARICA AND OLIVE LEAVES AS ENVIRONMENTAL FRIENDLY CORROSION INHIBITORS FOR ZINC IN HCL SOLUTION.," Al-Azhar Bulletin of Science: Vol. 21: Iss. 2, Article 27.
DOI: https://doi.org/10.21608/absb.2010.7388