Performance of Synthesized Acetone Based Inhibitor on Low Carbon Steel Corrosion in 1 M HCl Solution

Abstract

1-[(5-Phenyl-1,3, 4-oxadiazol-2-yl)thio] acetone (POTA) was synthesized and tested as a new corrosion inhibitor for low carbon steel in 1 M hydrochloric acid. The diagnosis of POTA was carried out by FTIR and NMR analysis. Inhibitor performance was investigated using mass loss technique. POTA was acted as a moderate corrosion inhibitor for low carbon steel in 1 M hydrochloric acidic solution with efficiency more than 70%. The inhibitor performance was attributed to the formation of an adsorption layer on the low carbon steel surface. The mechanism of inhibitor adsorption on the low carbon steel surface was according to the Langmuir adsorption isotherm. The value of adsorption heat was within the range of chemical adsorption. Quantum chemical studies were adopted as a theoretical tool to clarify the mechanism of inhibition and to support the experimental part.

Systematic investigation of the adsorption and inhibition properties of a new clickable 1,2,3‐triazole compound for mild steel in 1 M HCl medium

“…At the same time, values of ΔG 0 ads below À 20 kJ mol À 1 produce only an electrostatic interaction (physisorption). [70,71] In this context, the high negative values of ~G0 ads shown in Table 6 point out a favorable interaction between the prepared 1,2,3-triazole and the MS surface that would lead to a spontaneous adsorption process. [72][73][74] The values of ~G0 ads obtained for the NTM inhibitor indicate that the adsorption mechanism on the surface of MS may be due to both physisorption and chemisorption (mixed adsorption) (values of ~G0 ads in the range À 36.89 to À 39.75 kJ mol À 1 ).…”

Synthesis of a resorcinol-based derivative as a corrosion inhibitor for low-carbon steel in 0.5 mol L−1 HCl medium: chemical, electrochemical, and theoretical aspects

“…10 Many authors have investigated the corrosion of steel in different corrosion media. 5,[10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] A combination of sodium dodecyl sulfate bromide (SDS) and cetyltrimethylammonium bromide (CTAB) was used as a corrosion inhibitor in a 3.5% NaCl solution. 11 Both cathodic and anodic reaction rates were decreased by the inhibitor.…”

“…1-[(5-Phenyl-1,3,4-oxadiazol-2-yl)thio] acetone (POTA) compound was synthesized and examined in 1 M hydrochloric acid as a potential novel corrosion inhibitor for LCS. 17 FTIR and NMR measurements were used to diagnose the POTA compound. The adsorption layer that formed on the LCS surface was responsible for the inhibitor's performance.…”

Melamine–isatin tris Schiff base as an efficient corrosion inhibitor for mild steel in 0.5 molar hydrochloric acid solution: weight loss, electrochemical and surface studies

“…They adsorb on the surface of metals and protect them from corrosion, 6,7 and their effectiveness in a range of acidic solutions is also due to the heteroatoms they contain, such as nitrogen, oxygen, phosphorus, sulfur and halogens. [8][9][10] The adsorption of organic molecules on the surface of metal prevents direct contact between the metal and corrosive environment. 11,12 However, many organic corrosion inhibitors are costly and harmful to human health and the environment.…”