Evaluation Of Antibacterial And Corrosion Inhibition Activities Of N,N'-Bis (Salicylidene) Ethylenediamine For Mild Steel In 1M H2SO4

Abstract

The most effective corrosion inhibitors are compounds containing high electron density functional groups in their structure, such as heteroatoms and aromatic rings. They are favored for their effective corrosion protection properties, including some Schiff bases. The corrosion protection behavior of Schiff base N,N'-bis(salicylidene)ethylenediamine as a mild steel corrosion inhibitor at different concentrations in 1 M H2SO4 solution was studied using potentiodynamic polarization techniques and thermometry (thermometry). The results showed that N,N'-bis(salicylidene)ethylenediamine significantly reduced the corrosion of mild steel in acidic solution (H2SO4). In contrast, the inhibition efficiency (%IE) increased with increasing inhibitor concentration but decreased with increasing temperature. According to the Langmuir adsorption isotherm, the inhibitor spontaneously adsorbed on the metal surface. In this paper, the performance of expired N,N'-bis(salicylidene)ethylenediamine as a mild steel corrosion inhibitor in H2SO4 solution was investigated. N,N'-Bis (salicylidene) ethylenediamine inhibitory efficiencies increased at the temperatures 303 and 308 K in comparison with other degrees. The minimum inhibitory concentrations of 3 Klebsiella pneumoniae isolates by using the Schiff base were evaluated by microtiter plate assay with resazurin dye. The results revealed that the range of minimum inhibitory concentrations were (300-400 ppm). By using resazurin dye in a microtiter plate test, the minimum inhibitory doses of N,N'-Bis (salicylidene) ethylenediamine against 3 S. aureus isolates were assessed. The range of inhibitory action, according to the results, was (300-400 ppm). This study provides theoretical support for the experimental results. The Schiff base can be used as an economical, effective and safe corrosion inhibitor for the system studied. In conclusion, N,N'-bis(salicylicaldehyde)ethylenediamine is an effective corrosion inhibitor in the presence of Schiff base. The active compound molecules attach to the surface of mild steel, thereby preventing corrosion.