Work

Corrosion inhibition efficiency of expired antimalarial drugs on stainless steels in acidic and basic media

Year: 2025

Type: article

Abstract: The corrosion inhibition behaviour of 304L and 316L stainless steels (SS) in acidic (1 M Hydrochloric Acid , HCl) and basic (1 M Sodium Hydroxide, NaOH) media was investigated using expired antimalarial drugs , Lufart Double Strength (DS) and Lonart DS as potential green inhibitors. Potentiodynamic polarization measurements were used to evaluate the Inhibition Efficiencies (IE) of the inhibitors on each SS in each medium. X-ray fluorescence (XRF) was used to characterize the steel samples and Fourier Transfer Infrared (FTIR) Spectroscopy was used to predict the major constituents of the drug samples. The findings suggest that the expired antimalarial drugs contribute significantly to corrosion inhibition, offering an eco-friendly alternative to conventional inhibitors while providing a novel approach to pharmaceutical waste management. This study highlights the potential of these expired drugs as effective corrosion inhibitors for stainless steels , proposing their use as a sustainable solution in corrosion control applications.

Source: Results in Surfaces and Interfaces

DOI: 10.1016/j.rsurfi.2025.100414

Authors: Asiwome Boateng, Emmanuel Kwesi Arthur, Emmanuel Gikunoo, Emmanuel Afriyie

Institution: Kwame Nkrumah University of Science and Technology

Language: English

Topic: Corrosion Behavior and Inhibition

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: gold

Estimated APC paid: $1,190