Ketorol: New and Effective Corrosion Inhibitor for Mild Steel in Hydrochloric Acid Solution

被引：0
|
作者：
Quraishi, M. A. [1 ]
Sudheer [1 ]
Ebenso, Eno E. [2 ]
机构：
[1] Banaras Hindu Univ, Indian Inst Technol, Dept Appl Chem, Varanasi 221005, Uttar Pradesh, India
[2] North West Univ, Sch Math & Phys Sci, Dept Chem, ZA-2735 Mmabatho, South Africa
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2012年 / 7卷 / 10期
关键词：
EIS; Ketorol; Acid solution; Adsorption; ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY; TRIAZOLE DERIVATIVES; IRON CORROSION; MEDIA; ALUMINUM; ADSORPTION; DRUG;
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The corrosion inhibition properties of Ketorol on mild steel corrosion in 1.0 M HCl solution was studied using electrochemical impedance spectroscopy (EIS), potentiodynamic polarization and weight loss methods. EIS data were interpreted using CPE in equivalent circuit. Adsorption of the inhibitor on the mild steel surface followed the Langmuir adsorption isotherm. The value of free energy of adsorption (Delta G degrees(ads)) is -35.52 kJ mol(-1) indicated that adsorption of Ketorol is a spontaneous process. Ketorol exhibited the highest inhibition efficiency 92.36 % at concentration 300 ppm.
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收藏
页码：9920 / 9932
页数：13
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