scholarly journals Inhibition Effect of Benzylpenicillin Drug Towards Corrosion of Carbon Steel in Acidic Solutions

2019 ◽  
Vol 12 (1) ◽  
pp. 11-19
Author(s):  
A.A. Idress ◽  
Dalal M. Ibrahim
Keyword(s):  
Carbon Steel ◽  
Acidic Solutions ◽  
Inhibition Effect

Inhibition Effect of Environment-Friendly Inhibitors on the Corrosion of Carbon Steel in Recirculating Cooling Water

2015 ◽  
Vol 54 (7) ◽  
pp. 1971-1981 ◽  
Author(s):  
Chengjun He ◽  
Zhipeng Tian ◽  
Bingru Zhang ◽  
Yu Lin ◽  
Xi Chen ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Cooling Water ◽  
Environment Friendly ◽  
Inhibition Effect

Corrosion Inhibition of N,N- diethylammonium O,O′- di (p-chlorophenyl) dithiophosphate for Carbon Steel in HCL Solution

2013 ◽  
Vol 781-784 ◽  
pp. 299-303
Author(s):  
Shu Lan Cai ◽  
Kang Quan Qiao ◽  
Fa Mei Feng
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Mixed Type ◽  
Electrochemical Impedance ◽  
Equivalent Circuit Model ◽  
Inhibition Effect ◽  
Inhibition Process ◽  
Hcl Solution ◽  
Mixed Type Inhibitor

A new corrosion inhibior N,N-diethylammonium O,O-di (p-chlorophenyl) dithiophosphate (EDPDP) has been synthesized and its inhibition effect towards the corrosion of carbon steel in 1.0 molL-1 HCl solution at 25 °C has been investigated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods. The obtained results show that EDPDP is a excellent inhibitor and the inhibition efficiencies exceed 90 %. The polarization measurements reveal that EDPDP is a mixed type inhibitor and the equivalent circuit model of the corrosion inhibition process is obtained by the analysis of EIS data.

Inhibitive Effect of Fatty Amide and Secondary Species on the Corrosion of Carbon Steel

2016 ◽  
Vol 1133 ◽  
pp. 366-370 ◽  
Author(s):  
Izni Mariah Ibrahim ◽  
Junaidah Jai ◽  
Md Amin Hashim
Keyword(s):  
Carbon Steel ◽  
Room Temperature ◽  
Inhibition Efficiency ◽  
Static Condition ◽  
Fatty Amide ◽  
Nacl Solution ◽  
Inhibition Effect ◽  
Linear Polarization Resistance ◽  
Atomic Force ◽  
Polarization Resistance Method

The effect of hydrazine, N2H4 in the presence of fatty amide as corrosion inhibitor on corrosion of carbon steel in 3.5 wt% NaCl solution was studied by linear polarization resistance method (LPRM) at room temperature and static condition. The specimens’ surface analysis was done using atomic force microscope (AFM). The inhibition efficiency improved to more than 80% when 500, 100 and 2000 ppm of hydrazine were added to the inhibited solution containing 20 ppm fatty amide. The results obtained show that the inhibition effect is increased with increase of hydrazine concentration in inhibited solution. It indicates that hydrazine retards the reduction of oxygen in the corrosion process by reacting with dissolved oxygen in the solution and thus, further it reduces the corrosion rate of carbon steel.

The corrosion inhibition of carbon steel in 5 per cent HCl by Momordica charantia extract

2014 ◽  
Vol 61 (4) ◽  
pp. 255-260 ◽  
Author(s):  
Xie Xuejun* ◽  
Xiao Peng* ◽  
He Jie ◽  
Xiao Wen ◽  
Fu Qiang ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Mixed Type ◽  
Inhibition Efficiency ◽  
Xps Analysis ◽  
Content Type ◽  
Isotherm Equation ◽  
Inhibition Effect ◽  
Langmuir Isotherm Equation ◽  
Ir Analysis ◽  
Mixed Type Inhibitor

Purpose – To study the inhibition effect and mechanism of the Momordica charantia extract (BM) to 20 A carbon steel in 5 per cent HCl. Design/methodology/approach – The weight loss, polarization curve, infrared spectrum (IR) analysis and X-ray photoelectron spectrum (XPS) analysis were carefully investigated to indicate the inhibition effect and mechanism of the BM to 20 A carbon steel in 5 per cent HCl. Findings – BM was composed of C, N and O. Functional groups such as N–H and C=O were found in BM. The inhibition efficiency increased with the increasing concentration of BM. BM behaved as a mixed-type inhibitor, and the inhibition of BM to 20 A carbon steel might be its adsorption through the coordinate covalent bonding among the lone pair electrons of N and O and the empty 3d orbits of Fe, and the adsorption on the surface of 20 A carbon steel obeyed the Langmuir isotherm equation. Research limitations/implications – The inhibition of the BM to 20 A carbon steel in 5 per cent HCl. Practical implications – BM could be used in 5 per cent HCl to prevent 20 A carbon steel from corrosion. Social implications – BM could be used in the chemical cleaning of the boilers to prevent the thermal equipments from corrosion. Originality/value – The inhibition effect and mechanism of the BM to 20 A carbon steel were studied by the weight loss, polarization curve, IR analysis and XPS analysis. BM was composed of C, N and O. Functional groups such as N–H and C=O were found in BM. BM behaved as a mixed-type inhibitor. The inhibition efficiency increased with the increasing concentration of BM, and the adsorption on the surface of 20 A carbon steel obeyed the Langmuir isotherm equation.

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