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首页> 外文期刊>Journal of Encapsulation and Adsorption Sciences >Corrosion Inhibition Properties of Norepinephrine Molecules on Mild Steel in Acidic Media
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Corrosion Inhibition Properties of Norepinephrine Molecules on Mild Steel in Acidic Media

机译：去甲肾上腺素分子在酸性介质中对低碳钢的缓蚀性能

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Inhibition performance of norepinephrine was investigated as corrosion inhibitors by Gravimetric technique and carried out with mild steel samples in 1 M hydrochloric acid solution at room temperature. Norepinephrine exhibited maximum efficiency of 79% at 500 mg/L. The results of Gravimetric studies revealed that the investigated compound acted as good corrosion inhibitor and the inhibition efficiencies increased with increase in the concentrations of the inhibitor IC. The experimental data complied with the Langmuir adsorption isotherm. Thermodynamic parameters, such as ΔGo, ΔHo, and ΔSo, were calculated using adsorption equilibrium constant obtained from the Langmuir isotherm. Results suggested that the norepinephrine adsorption on mild steel surface was a spontaneous and exothermic process. Scanning electron microscopy was used to investigate the mild steel surface at the highest corrosion inhibition studied concentration.
机译：通过重量分析技术研究了去甲肾上腺素作为缓蚀剂的抑制性能，并在室温下在1M盐酸溶液中对低碳钢样品进行了抑制。去甲肾上腺素在500 mg / L时显示最大效率为79％。重量研究的结果表明，所研究的化合物起良好的缓蚀剂的作用，并且随着缓蚀剂IC浓度的增加，缓蚀效率也随之提高。实验数据符合Langmuir吸附等温线。使用从Langmuir等温线获得的吸附平衡常数来计算热力学参数，例如ΔGo，ΔHo和ΔSo。结果表明，去甲肾上腺素在低碳钢表面上的吸附是自发的且放热的过程。扫描电子显微镜用于研究在最高腐蚀抑制浓度下的低碳钢表面。

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