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Corrosion restriction and adsorption characteristics of Nitrogen–containing ligands on Aluminium in different concentrations of Hydrochloric acid

Author Affiliations

  • 1Government Engineering College, Ajmer, Rajasthan, India

Res. J. Recent Sci., Volume 15, Issue (3), Pages 1-7, July,2 (2026)

Abstract

In the present paper, we are presenting mass loss to analyse the corrosion inhibition of aluminium in 0.5N HCl, 1.0N HCl, and 2.0N HCl solutions by three novel nitrogen-containing ligands (Schiff’s bases) viz, N(vanillidine)-4-methyl-1-phenylimine (SB1), N(vanillidine)-4-methoxy-1-phenylimine (SB2), N(anisidine)-1-napthylimine (SB3). The efficiencies have been compared with those of parent aldehyde and amines from which Schiff's base has been derived. Results of inhibition efficiencies observed from these two methods are in good agreement and have been found to depend on the concentrations of inhibitors as well as those of acids. The inhibitory efficacy of all inhibitors increases with increasing inhibitor concentration. Efficacy also increases with increasing concentration of acids. Adsorption of the inhibition molecule on the aluminium surface was consistent with the Langmuir isotherm.

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