Synergistic effect of 1-(2,5-dioxoimidazolidin-4-yl)urea and Tween-80 towards the corrosion mitigation of mild steel in HCl

Abstract

The inhibition performance and synergistic inhibition effect of DMU with Tween-80 on the corrosion of mild steel in 1 M HCl was studied for the first time.

Study on corrosion behavior of new corrosion inhibitor imidazole derivatives for mild steel in oil‐in‐water emulsion

“…The specimens (22 mm × 22 mm with a 5‐mm‐diameter hole) were fully immersed in the emulsion containing various concentrations of the studied BTM and BTMS with various temperatures (298–338 K) for 24 h; the range of the concentrations is from 50 to 500 mg L −1 . After being withdrawn from the solutions, the samples were rinsed with acetone, dried, and weighed 22 . The corrosion rates ( ν , mg m −2 h −1 ) of the specimens, surface coverage ( θ ), and the inhibition efficiency ( η ) with the inhibitors were obtained according to the formulas 22 …”

“…After being withdrawn from the solutions, the samples were rinsed with acetone, dried, and weighed 22 . The corrosion rates ( ν , mg m −2 h −1 ) of the specimens, surface coverage ( θ ), and the inhibition efficiency ( η ) with the inhibitors were obtained according to the formulas 22 where S is the surface area of the steel specimens, t is the immersion time, and w 0 and w are the weights of specimens before and after immersed in the emulsion, respectively.…”

“…Fedel et al studied the sebacic acid as a corrosion inhibitor for hot‐dip galvanized steel in 0.1 M NaCl solution, which have shown a competitive mechanism between the dissolution of the metal in the acidified solution and the inhibition provided by the dicarboxylic species by means of scanning electron microscopy (SEM) investigation combined with Fourier transform infrared (FT‐IR) analysis 21 . Nowadays, the immediate priority should be the development cost–benefit and green inhibitors 22,23 …”

“…21 Nowadays, the immediate priority should be the development cost-benefit and green inhibitors. 22,23 In this work, two imidazole derivatives, 2-(2-(…”

Corrosion Inhibition of Mild Steel in Strong Acid Environment by 4-((5,5-dimethyl-3-oxocyclohex-1-en-1-yl)amino)benzenesulfonamide

“…The three-dimensional structure of DOBF as a reason which was responsible for the percentage of inhibition efficiency and significance of corroded technique upon the coupon surface. The study was carried out and compared with the methodological results [36][37][38][39]. Theoretical parameters such as HOMO, LUMO, energy gap (ΔE), atomic charges, dipole moment (μ), electron affinity (A), hardness (η), softness (σ) electronegativity ( ), ionization potential (I), and fraction of electrons transferred (∆ ) were determined by Density Functional Theory (DFT) calculations in addition to Mulliken atomic charge.…”