The inhibitory activity of the expired egg-white carbon steel (CS) extract in HCl solution was studied in this article. The extract was examined using FT-IR, and the surface was examined using a scanning electron microscope (SEM) and energy-dispersive X-ray analysis (EDX). Weight loss techniques at various temperatures were used to examine corrosion investigations (298, 308, 318, and 328 K), concentrations (100, 200, 400, and 800 mg. L⁻¹) of extracts, and electrochemical measurements (potentiodynamic polarization (PDP) and impedance spectroscopy (EIS) at 25°C and different concentrations. Results. Results obtained through EIS demonstrated a maximal inhibition efficiency of 90% at an inhibitor concentration of 800 mg. L⁻¹. Moreover, the findings of the potentiodynamic polarization indicated that egg-white extract was a mixed type of inhibitor and slowed down both cathodic and anodic reactions. For weight loss analysis, an inhibitory potency (89, 83, 77, and 71%) at various temperatures (298, 308, 318, and 328 K) was demonstrated, respectively. It indicates that the temperature rise contributes to a decrease in the resistance of the carbon steel. The adsorption of the expired egg-white extract was spontaneous with physisorption and chemisorption according to the Langmuir isotherm model, according to adsorption isotherm studies.

中文翻译：

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过期鸡蛋清提取物作为碳钢缓蚀剂在 1M HCl 中的吸附行为

本文研究了过期蛋清碳钢(CS)提取物在HCl溶液中的抑制活性。使用 FT-IR 检查提取物，使用扫描电子显微镜 (SEM) 和能量色散 X 射线分析 (EDX) 检查表面。使用不同温度下的失重技术来检查腐蚀研究（298、308、318 和 328 K）、提取物的浓度（100、200、400 和 800 mg. L ^-1）和电化学测量（动电位极化（ PDP) 和阻抗谱 (EIS) 在 25°C 和不同浓度。结果. 通过 EIS 获得的结果表明抑制剂浓度为 800 mg L ^{-1 时}的最大抑制效率为 90%. 此外，动电位极化的结果表明，蛋清提取物是一种混合类型的抑制剂，减缓了阴极和阳极反应。对于体重减轻分析，分别证明了在不同温度（298、308、318 和 328 K）下的抑制效力（89、83、77 和 71%）。这表明温度升高有助于降低碳钢的电阻。根据吸附等温线研究，根据朗缪尔等温线模型，过期蛋清提取物的吸附是自发的，具有物理吸附和化学吸附。