Synergistic Effect of Phytic Acid and Benzyltrimethyl Ammonium Bromide on Corrosion Inhibition of Carbon Steel in 0.5 M HCl

2019 ◽  
pp. 7348-7362
Author(s):  
Weipeng Zhang ◽  
Keyword(s):  
Carbon Steel ◽  
Synergistic Effect ◽  
Phytic Acid ◽  
Corrosion Inhibition ◽  
Ammonium Bromide

A Study of Corrosion Inhibition of Carbon Steel in Hydrochloric Acid Using BIMGCS12-3

2012 ◽  
Vol 427 ◽  
pp. 3-6 ◽  
Author(s):  
Yong Ming Sun ◽  
Hong Ling Chen
Keyword(s):  
Melting Point ◽  
Carbon Steel ◽  
Hydrochloric Acid ◽  
Corrosion Inhibition ◽  
Elemental Analysis ◽  
Inhibition Efficiency ◽  
Raw Materials ◽  
Ammonium Bromide ◽  
Target Compound ◽  
H Nmr

Gemini benzimidazole cationic surfactant, propanediyl-α, ω-bis-(N-dodecyl benzimidazole ammonium bromide), referred as BIMGCS12-3, was synthesized from the raw materials of benzimidazole, dodecane bromide and dibromopropane. The structure of the target compound was confirmed by1H NMR, elemental analysis and melting point measurements. Its surface properties were determined and corrosion inhibition of carbon steel in 1M HCl was investigated by gravimetric measurements. BIMGCS12-3 exhibited excellent protection for carbon steel in the low concentration 20mg L-1and the inhibition efficiency for corrosion decreased with increment of temperature.

Synergistic Effect of Lysozyme and Vitamin B1 on the Corrosion Inhibition of Carbon Steel in Sulphuric Acid

2012 ◽  
Vol 463-464 ◽  
pp. 895-899 ◽  
Author(s):  
Feng Wang ◽  
Xuan De Ji ◽  
Xin Lu Liu
Keyword(s):  
Carbon Steel ◽  
Synergistic Effect ◽  
Sulphuric Acid ◽  
Corrosion Inhibition ◽  
Potentiodynamic Polarization ◽  
High Efficiency ◽  
Electrochemical Impedance ◽  
Effective Means ◽  
Vitamin B1 ◽  
Inhibition Mechanism

In recent years more attention is paid to high-efficiency and nontoxic corrosion inhibitor. Synergistic inhibition is an effective means to improve the inhibitive force of inhibitor. The aim of this work is to attempt to find out inhibition mechanism and synergistic effect of Lysozyme (LYZ) and vitamin B1 (VB1) and to diversify the application of inhibitor in acidic medium. The corrosion inhibition effect of LYZ and VB1 for carbon steel specimens in 0.5 mol•L-1 sulphuric acid solution have been investigated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods. The obtained results show that carbon steel is more efficiently protected by the mixture of lysozyme and vitamin B1 (LYZ-VB1) than LYZ or VB1. By potentiodynamic polarization method, the highest inhibition efficiencies of 89.5% and 80.04% are observed with single LYZ or VB1, respectively, and an improved inhibition efficiency of 94.2% is obtained with LYZ-VB1 at 25°C.

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