Inhibition properties of self-assembled corrosion inhibitor talloil diethylenetriamine imidazoline for mild steel corrosion in chloride solution saturated with carbon dioxide

2013 ◽  
Vol 77 ◽  
pp. 265-272 ◽  
Author(s):  
Ivana Jevremović ◽  
Marc Singer ◽  
Srđan Nešić ◽  
Vesna Mišković-Stanković
Keyword(s):  
Carbon Dioxide ◽  
Mild Steel ◽  
Corrosion Inhibitor ◽  
Chloride Solution ◽  
Steel Corrosion ◽  
Mild Steel Corrosion ◽  
Self Assembled

scholarly journals Inhibition of Mild Steel Corrosion by 3-Benzoylmethyl Benzimidazolium Hexafluoroantimonate in Acidic Solution

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Ayssar Nahlé ◽  
Ideisan I. Abu-Abdoun ◽  
Ibrahim Abdel-Rahman
Keyword(s):  
Weight Loss ◽  
Mild Steel ◽  
Corrosion Inhibitor ◽  
Thermodynamic Parameters ◽  
Phenyl Ring ◽  
Acidic Solution ◽  
Steel Corrosion ◽  
Effect Of Temperature ◽  
Mild Steel Corrosion ◽  
Hcl Solution

The corrosion inhibition of mild steel in 1 M HCl solution by a synthesized compound (3-benzoylmethyl benzimidazolium hexafluoroantimonate) was investigated electrochemically and by weight loss experiments. The concentration of this inhibitor ranged from5 ×10-7 M to5×10-4 M. The effect of temperature (from 303 to 343 K) and concentrations (from5×10-7 M to5×10-4 M) were investigated. The percentage inhibition increased with the increase of the concentration of the inhibitor and reached about 98% at the concentration of5×10-4 M at 303 K. The percentage inhibition decreased with the increase of temperature. The thermodynamic parameters for the adsorption of this inhibitor on the metal surface were calculated. This compound was found to be a very good corrosion inhibitor due to the presence of nitrogen in benzimidazole and phenyl ring.

The Unified Mechanism of Corrosion in Aqueous Weak Acids Solutions: A Review of the Recent Developments in Mechanistic Understandings of Mild Steel Corrosion in the Presence of Carboxylic Acids, Carbon Dioxide, and Hydrogen Sulfide

CORROSION ◽  
10.5006/3474 ◽  
2020 ◽  
Vol 76 (3) ◽  
pp. 268-278 ◽  
Author(s):  
Aria Kahyarian ◽  
Bruce Brown ◽  
Srdjan Nešić
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Sulfide ◽  
Mild Steel ◽  
Carboxylic Acids ◽  
Steel Corrosion ◽  
Weak Acid ◽  
Weak Acids ◽  
Mild Steel Corrosion ◽  
Wide Range ◽  
Recent Developments

The recent developments in mechanistic understandings of mild steel corrosion in the presence of carboxylic acids, carbon dioxide, and hydrogen sulfide, when place side by side, reveal a simple, universal mechanism despite all the differences conventionally presumed for these corroding systems. These findings are recast into a generic mechanistic view of corrosion in aqueous weak acid solutions herein. In this mechanism, the buffering effect resulting from the chemical dissociation reaction inside the boundary layer, is highlighted as an inherent property of all weak acids. The validity of this mechanism was further examined through mathematical experimentation based on a comprehensive mechanistic model. It is shown that this mechanism is able to account for a wide range of characteristic behavior of cathodic currents, including those previously associated with the direct reduction reactions. The results are ultimately presented as a simple and generic categorization of weak acids based on their pKa values to serve as a basis to assess the detrimental effect of any weak acid on mild steel corrosion in aqueous acidic solutions.

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