Inhibition effects of phenols on corrosion of mild steel in nitric acid

被引：0
|
作者：
Rodge, J. K. [1 ]
Muley, M. R. [1 ]
Kulkarni, D. R. [1 ]
Deshpande, M. N. [1 ]
机构：
[1] Shrikrishna Mahavidyalaya, Dept Chem, Osmanabad 413613, India
来源：
ASIAN JOURNAL OF CHEMISTRY | 2007年 / 19卷 / 06期
关键词：
phenols as inhibitors; inhibitor efficiency; nitric acid media;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Effects of phenols on the corrosion of mild steel in various concentrations of nitric acid have been evaluated. Per cent loss in weight was found increase linearly with increase in acid concentration. Among the phenols used, p-cresol appears to be good inhibitor followed by m-cresol and phenol. 2-Nitro phenol reveals its oxidizing nature as indicated by increased loss in weight when compared with control. In case of naphthols; 2-naphthol seems to be more effective inhibitor as compared to 1-naphthol. An e.m.f. measurements in nitric acid media indicated that they are inversely related to corresponding weight losses. The trend observed in I.E. values is in the order as p-cresol > m-cresol > 2-naphthol > phenol > 1-naphthol > 2-nitro phenol.
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页码：4745 / 4752
页数：8
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