Corrosion Inhibition of Some Organic Compounds on Low Carbon Steel in Hydrochloric Acid Solution

被引：19
作者：
Khalifa, Omyma R. [1 ]
Abdallah, Shadia M. [1 ]
机构：
[1] Ain Shams Univ, Univ Coll Women Arts Sci & Educ, Dept Chem, Asma Fahmy St, Cairo 11341, Egypt
来源：
PORTUGALIAE ELECTROCHIMICA ACTA | 2011年 / 29卷 / 01期
关键词：
corrosion; protection; steel; benzenesulphonamidobutenamide derivatives;
D O I：
10.4152/pea.201101047
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The effect of N-[N'-(4-methoxyphenyl) benzenesulphonamido]-3-carboxy-4-methyl-4(4-methylphenyl)-3-butenamide 1, N-(N'-phenylbenzenesulphonamido)-3-carboxy-4methyl-4-(4-methylphenyl)-3-butenamide 2, and N-[N'-(4-chlorophenyl) benzenesulphonamido]-3-carboxy-4-methyl-4-(4-methylphenyl)-3-butenamide 3, on the corrosion of low carbon steel in 1 M hydrochloric acid solution has been studied by weight loss measurements and potentiodynamic technique over the temperature range 30-60 degrees C. Results obtained showed that protection efficiency increased with the increase in concentration of the different organic compounds used and decreased with the increase in temperature. Langmuir adsorption isotherm at all temperatures was studied. The phenomenon of physical adsorption is proposed from the values of E-a and Delta G degrees(ads). Results obtained showed that compound 1 is the best inhibitor, and the protection efficiency follows the order: 1 > 2 > 3.
引用
收藏
页码：47 / 56
页数：10
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