Piroxicam; A novel corrosion inhibitor for mild steel corrosion in HCl acid solution
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نویسنده
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Singh A. K. ,Quraishi M. A.
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منبع
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journal of materials and environmental science - 2010 - دوره : 1 - شماره : 2 - صفحه:101 -110
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چکیده
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The corrosion inhibition properties of piroxicam (prx) for mild steel corrosion in hcl solution were analysed by electrochemical impedance spectroscopy (eis), potentiodynamic polarization and gravimetric methods. physical adsorption is proposed for the inhibition and the process followed the langmuir adsorption isotherm. the mechanism of adsorption inhibition and type of adsorption isotherm were proposed from the trend of inhibition efficiency with temperature, ea and ï ads δg°ads potentiodynamic polarization study clearly revealed that piroxicam acted as mixed type inhibitor. the experimental data showed a frequency distribution and therefore a modelling element with frequency dispersion behaviour, a constant phase element (cpe) has been used.
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کلیدواژه
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EIS; Acid solutions; Mild steel; potentiodynamic polarization; acid inhibition
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آدرس
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Banaras Hindu University, Institute of Technology, Department of Applied Chemistry, India, Banaras Hindu University, Institute of Technology, Department of Applied Chemistry, India
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پست الکترونیکی
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maquraishi@rediffmail.com; maquraishi.apc@itbhu.ac.in
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