Inhibition of the corrosion of mild steel in H2SO4 by 5- amino-1-cyclopropyl-7-[(3R, 5S) 3, 5-dimethylpiperazin- 1-YL] -6, 8-difluoro-4-oxo-uinoline-3-carboxylic acid (ACPDQC)
Inhibition of the corrosion of mild steel in H2SO4 by 5- amino-1-cyclopropyl-7-[(3R, 5S) 3, 5-dimethylpiperazin- 1-YL] -6, 8-difluoro-4-oxo-uinoline-3-carboxylic acid (ACPDQC)
No Thumbnail Available
Date
2008-11
Authors
Eddy, N. O.
Ekwumemgbo, P.
Odoemelam, S. A.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Adsorption and inhibitive efficiencies of ACPDQC on mild steel corrosion have been studied using
gasometric and thermometric techniques. ACPDQC is found to be a good inhibitor for the corrosion of
mild steel in H2SO4 solution. The inhibition efficiencies of ACPDQC were found to decrease with
increase in temperature but increased with increase in the concentration of the extract.
Thermodynamic/adsorption considerations revealed that the adsorption of ACPDQC on the surface of
mild steel is exothermic, spontaneous and proceeded via the mechanism of physical adsorption.
Classical adsorption isotherms of Langmuir and Frumkin best described the adsorption characteristics
of ACPDQC on the surface of mild steel.
Description
Preprint Journal Articles
Keywords
Corrosion,, inhibition,, ACPDQC,, mild steel,, H2SO4,, 5- amino-1-cyclopropyl,, 5-dimethylpiperazin- 1-YL-6,, 8-difluoro-4-oxo-uinoline-3-carboxylic acid,