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首页> 外文期刊>International Journal of Electrochemical Science >Corrosion Inhibition Potential of Daniella Oliverri Gum Exudate for Mild Steel in Acidic Medium
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Corrosion Inhibition Potential of Daniella Oliverri Gum Exudate for Mild Steel in Acidic Medium

机译：Daniella Oliverri胶渗出液对酸性介质中低碳钢的缓蚀潜力

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Physicochemical parameters of Daniella olliverri (DO) gum exudates were analyzed and the resultsindicated that the gum is acidic, brownish in colour, ionic and highly soluble in water but insoluble inacetone, chloroform and ethanol. GCMS spectrum of the gum indicated the presence of sucrose, dihex- 5-en-2-yl phthalate, stearic acid, 2,6-dimethyl-4-nitrophenol and (E)-hexadec-9-enoic acid. Corrosioninhibition potential of the gum was investigated using weight loss and FTIR methods. Daniellaolliverri gum has been found to be a good inhibitor for the corrosion of mild steel in HCl solution.Corrosion inhibition properties of the gum is attributed to the presence of aromatic, suitable functionalgroups and heteroatoms in its chemical constituents, which facilitated its adsorption. The adsorption ofthe gum on the surface of the metal was found to be endothermic, spontaneous and supported themechanism of physical adsorption. The results obtained obeyed the Langmuir adsorption isothermmodel.
机译：分析了Daniella olliverri（DO）胶渗出物的理化参数，结果表明该胶为酸性，棕褐色，离子型且高度溶于水，但不溶于丙酮，氯仿和乙醇。口香糖的GCMS光谱表明存在蔗糖，邻苯二甲酸二己酯-5-烯-2-基酯，硬脂酸，2，6-二甲基-4-硝基苯酚和（E）-十六烷基-9-烯酸。使用重量损失和FTIR方法研究了牙龈的腐蚀抑制潜力。 Daniellaolliverri胶被认为是在HCl溶液中腐蚀低碳钢的良好抑制剂。胶的腐蚀抑制性能归因于其化学成分中存在芳香族，合适的官能团和杂原子，从而促进了其吸附。发现胶在金属表面上的吸附是吸热的，自发的并且支持物理吸附的机理。获得的结果服从Langmuir吸附等温模型。

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