ANTICORROSION POTENTIAL OF HYDRALAZINE FOR CORROSION OF MILD STEEL IN 1M HYDROCHLORIC ACID SOLUTION

被引：0

作者：

Prasanna, B. M. ^{[1
]}

Praveen, B. M. ^{[2
]}

Hebbar, Narayana ^{[3
]}

Venkatesha, T. V. ^{[4
]}

机构：

[1] Sri Taralabalu Jagadguru Inst Technol, Dept Chem, Ranebennur, India

[2] Srinivas Sch Engn, Dept Chem, Mangalore, India

[3] Bearys Inst Technol, Dept Chem, Mangalore, India

[4] Kuvempu Univ, Sch Chem Sci, Dept Studies Chem, Shankaraghatta, India

来源：

JOURNAL OF FUNDAMENTAL AND APPLIED SCIENCES | 2015年 / 7卷 / 02期

关键词：

Hydralazine; Weight loss; Mild steel; Activation parameters; SEM;

D O I：

暂无

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Anticorrosion potential of mild steel by Hydralazine as corrosion inhibitor for mild steel in 1M hydrochloric acid was investigated by chemical and electrochemical measurements at 303-333 K temperature. The maximum inhibition efficiency of inhibitor by Weight loss method is around 90%, Tafel polarization method is around 85%; electrochemical impedance spectroscopy measurement around 90% at 1250 ppm of Hydralazine in. The result shows that the inhibition efficiency increases with I 1M hydrochloric acid. Hydralazine acts as a mixed type inhibitor which inhibits the corrosion of mild steel due to the adsorption on metal surface. This adsorption system obeys the Langmuir adsorption isotherm. Activation parameters explains the effect of temperature with inhibition efficiency of inhibitor molecule. SEM images of inhibited mild steel strips shows a formation of passive protective film over the surface.

引用

页码：222 / 243

页数：22

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