Simple Approach to Predict Corrosion Inhibition Efficiency of Imidazole and Benzimidazole Derivatives as well as Linear Organic Compounds Containing Several Polar Functional Groups

2016 ◽  
Vol 642 (16) ◽  
pp. 906-913 ◽  
Author(s):  
Mohammad Hossein Keshavarz ◽  
Karim Esmaeilpour ◽  
Ahmad Nozad Golikand ◽  
Zeinab Shirazi
Keyword(s):  
Functional Groups ◽  
Organic Compounds ◽  
Corrosion Inhibition ◽  
Inhibition Efficiency ◽  
Simple Approach ◽  
Benzimidazole Derivatives ◽  
Corrosion Inhibition Efficiency ◽  
Polar Functional Groups

Adsorption and corrosion inhibition characteristics of two medicinal molecules

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Hydrochloric Acid ◽  
Corrosion Rate ◽  
Mild Steel ◽  
Corrosion Inhibition ◽  
Half Life ◽  
Thermodynamic Data ◽  
Inhibition Efficiency ◽  
Gravimetric Method ◽  
Corrosive Environment ◽  
Corrosion Inhibition Efficiency

The corrosion inhibition characteristics of two medicinal molecules phenylalanine and rutin on mild steel in 1.0M Hydrochloric acid were evaluated using gravimetric method. Corrosion inhibition efficiency of 83.78 and 90.40 % was obtained respectively after seven days. However, phenylalanine showed weak accumulative higher corrosion inhibition efficiency. The presence of both molecules in the corrosive environment reduced the corrosion rate constant and increased the material half-life. Thermodynamic data calculated suggests a spontaneous adsorption of the molecules on the mild steel’s surface.

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