Corrosion inhibition effect of novel methyl benzimidazolium ionic liquid for carbon steel in HCl medium

2016 ◽  
Vol 221 ◽  
pp. 368-380 ◽  
Author(s):  
Perumal Kannan ◽  
Jeyakumar Karthikeyan ◽  
Palanichamy Murugan ◽  
Toleti Subba Rao ◽  
Nallaiyan Rajendran
Keyword(s):  
Ionic Liquid ◽  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Inhibition Effect ◽  
Hcl Medium

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.

scholarly journals Study on Synergistic Corrosion Inhibition Effect between Calcium Lignosulfonate (CLS) and Inorganic Inhibitors on Q235 Carbon Steel in Alkaline Environment with Cl−

Molecules ◽  
2020 ◽  
Vol 25 (18) ◽  
pp. 4200
Author(s):  
Bing Lin ◽  
Junlei Tang ◽  
Yingying Wang ◽  
Hu Wang ◽  
Yu Zuo
Keyword(s):  
Carbon Steel ◽  
Metal Oxides ◽  
Corrosion Inhibition ◽  
Steel Surface ◽  
Film Deposition ◽  
General Corrosion ◽  
Adsorption Film ◽  
Inhibition Effect ◽  
Q235 Carbon Steel ◽  
Complex Film

The synergistic corrosion inhibition effect between calcium lignosulfonate (CLS) and three kinds of inorganic inhibitors (Na2MoO4, Na2SnO3, and NaWO4) with various molar ratios on Q235 carbon steel in alkaline solution (pH 11.5) with 0.02 mol/L NaCl was investigated by cyclic potentiodynamic polarization, electrochemical impedance spectroscopy, linear polarization, scanning electron microscopy, and X-ray photoelectron spectroscopy. Molybdate and stannate in hybrid inhibitor could promote the passivation of steel and form a complex film, which could suppress the corrosion effectively. Moreover, the insoluble metal oxides in the complex film formed by three kinds of inorganic inhibitor could help the adsorption of CLS onto the steel surface. The CLS molecules could adsorb onto the steel surface and metal oxides to form an adsorption film to protect the steel from corrosion. A three-layer protection film formed by a hybrid inhibitor, including passivation film, deposition film, and adsorption film, would effectively inhibit the corrosion reactions on the steel surface. The CLS compound with molybdate with the ratio of 2:3 shows the best inhibition effect on both general corrosion and localized corrosion.

Corrosion inhibition effect of 5-(4-methylpiperazine)-methylquinoline-8-ol on carbon steel in molar acid medium

2021 ◽  
Vol 123 ◽  
pp. 108366
Author(s):  
M. Bouassiria ◽  
T. Laabaissi ◽  
F. Benhiba ◽  
M. El Faydy ◽  
H. Fakhry ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Acid Medium ◽  
Corrosion Inhibition ◽  
Inhibition Effect
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