Amodiaquine drug as a corrosion inhibitor for mild steel in 0.1M HCl solution
Chem.
Met. Alloys 7 (2014) 149-153
https://doi.org/10.30970/cma7.0274
I.A. Akpan, N.O. Offiong
The inhibition effect of an environmentally
friendly and cost-effective drug, amodiaquine, on the
corrosion of mild steel in an acidic medium was studied by the weight loss
method at room temperature. The study revealed that the test drug has an
inhibitory action on the corrosion of mild steel in the investigated medium.
The inhibition efficiency was found to increase with increasing inhibitor
concentration. Plots of the concentration of metal versus time indicate first-order kinetics for the inhibition
process. It was also found that amodiaquine adsorbs
according to a Langmuir’s adsorption isotherm.
Attempts were made to correlate the chemical structure and the inhibition
mechanism.
Chemical structure of amodiaquine
Keywords
Corrosion
inhibitor / Mild steel / Amodiaquine drug / Weight
loss method