Chemically modified expired Dapsone drug as environmentally benign corrosion inhibitor for mild steel in sulphuric acid useful for industrial pickling process

Recent developments in sustainable corrosion inhibitors: design, performance and industrial scale applications

“…Open cost-effective approaches [325]. Because of this, several articles and research papers are published on expired drugs as corrosion inhibitors [326,327]. Various new and expired drugs are tested as effective corrosion inhibitors for different metals and alloys in various electrolytes.…”

Nitrogen and sulfur Co-doped carbon dots as ecofriendly and effective corrosion inhibitors for Q235 carbon steel in 1 M HCl solution

“…3a, and the corresponding electrochemical parameters and inhibition efficiency (h) are listed in Table 1. The inhibition efficiency was calculated according to the following equation: 33,34…”

Expired drugs as inhibitors in electrochemical processes – a mini-review

“…Based on the gravimetric measurements, inhibition efficiencies of 96% and 94% have been obtained at an optimum concentration of 0.219 mM Dapsone-benzaldehyde, respectively Dapsonesalicylaldehyde. An addition of about 0.6 mM KCl increased the inhibition efficiency up to 99% and 98% respectively [34]. Schiff bases derivate of expired antituberculosis drug Isoniazid were synthesized by A. K. Singh et al using four 5-indol derivatives: 5-bromo-indole-3-carboxime, 5-chloro-indole-3-carboxime, 5-methoxy-indole-3-carboxime and indole-3-carboxime [35].…”