Inhibition of mild steel corrosion by Rabeprazole sulfide

Inhibiting Effects of Rabeprazole Sulfide on the Corrosion of Mild Steel in Acidic Chloride Solution

“…It is a metabolite of an antiulcer drug, Rabeprazole. We have investigated the corrosion inhibition effect of this compound on mild steel in 0.5 M H 2 SO 4 media in a previous article [18]. However, according to literature study, there is no report found on corrosion inhibition studies of Rabeprazole sulfide in HCl medium.…”

Synthesis, characterization and inhibition effect of new antipyrinyl derivatives on mild steel corrosion in acidic solution

“…Generally, it is well known that values of DG o ads are of the order of -20 kJ mol -1 or lower indicating the electrostatic interaction between the charged molecules and the charged metal (physical adsorption); those of order of -40 kJ mol -1 or higher involve sharing or transfer of electrons from the inhibitor molecules to the metal surface to form a co-ordinate type of bond (chemisorption) [50]. In our experiment, the value of DG o ads is -46.7 kJ mol -1 , indicating that the adsorption mechanism of the inhibitors on mild steel in 1.0 M HCl solution is neither typical physisorption nor typical chemisorption but it is complex mixed type and electrostatic interaction (physisorption) is predominant [51][52][53]. Another form of Langmuir equation is written as below: where A is the independent constant, C is the inhibitor concentration, DH o ads is the standard heat of adsorption, and h is the surface coverage by the inhibitor molecules.…”

Red Arecanut Seed Extract as a Sustainable Corrosion Inhibitor for Aluminum Submerged in Acidic Corrodent: An Experimental Approach Towards Zero Environmental Impact

“…The corrosion potential (E corr ) and anodic (β a ) and cathodic (β c ) Tafel constants not shifted towards any particular side is an evidence of mixed corrosion inhibition [24,25] properties of red arecanut seed extract molecules on aluminum metal in 0.5 M HCl solution.…”