scholarly journals Cefuroxime Axetil: A Commercially Available Pro-Drug as Corrosion Inhibitor for Aluminum in Hydrochloric Acid Solution

2015 ◽  
pp. 1-6 ◽  
Author(s):  
Paul O Ameh ◽  
Umar M. Sani
Keyword(s):  
Weight Loss ◽  
Hydrochloric Acid ◽  
Acid Solution ◽  
Corrosion Inhibitor ◽  
Hydrochloric Acid Solution ◽  
Cefuroxime Axetil ◽  
Aluminum Surface ◽  
Protective Film ◽  
Adsorption Model ◽  
Free Energy Of Adsorption

Cefuroxime axetil (CA) a pro-drug was tested as corrosion inhibitor for aluminum in hydrochloric acid solution using thermometric, gasometric weight loss and scanning electron microscope (SEM) techniques. Results obtained showed that this compound has good inhibiting properties for aluminum corrosion in acidic medium, with inhibition efficiencies values reaching 89.87 % at 0.5 g / L. It was also found out that the results from weight loss method are highly consistent with those obtained by hydrogen evolution method and gasometric method; and all indicate that inhibitor efficiency increases with increasing inhibitor concentration. Cefuroxime axetil inhibited the corrosion of aluminum in solutions of HCl through the mechanism of physiosorption as confirmed by values of activation energy and free energy of adsorption. The adsorption of the inhibitor was also found to be spontaneous, exothermic and best fitted the Langmuir adsorption model. SEM analysis confirmed the existence of an absorbed protective film on the aluminum surface.

Acalypha torta Leaf Extract as Green Corrosion Inhibitor for Mild Steel in Hydrochloric Acid Solution

2013 ◽  
Vol 52 (2) ◽  
pp. 722-728 ◽  
Author(s):  
Pavithra M. Krishnegowda ◽  
Venkatarangaiah T. Venkatesha ◽  
Punith Kumar M. Krishnegowda ◽  
Shylesha B. Shivayogiraju
Keyword(s):  
Hydrochloric Acid ◽  
Acid Solution ◽  
Mild Steel ◽  
Corrosion Inhibitor ◽  
Hydrochloric Acid Solution ◽  
Leaf Extract ◽  
Green Corrosion Inhibitor

scholarly journals Electrochemical and Surface Morphological Studies of Carbon Steel Corrosion by a Novel Polynuclear Schiff Base in HCl Solution

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
K. S. Shaju ◽  
K. Joby Thomas ◽  
Vinod P. Raphael ◽  
Aby Paul
Keyword(s):  
Weight Loss ◽  
Schiff Base ◽  
Carbon Steel ◽  
Hydrochloric Acid ◽  
Adsorption Isotherm ◽  
Acid Solution ◽  
Corrosion Inhibition ◽  
Hydrochloric Acid Solution ◽  
Inhibition Efficiency ◽  
Morphological Studies

The corrosion inhibition efficiency of a potential polynuclear Schiff base, (s)-2-(anthracene-9 (10H)-ylidene amino)-5-guanidinopentanoic acid (A9Y5GPA), on carbon steel (CS) in 1 M hydrochloric acid solution has been investigated using weight loss measurements, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization studies. The corrosion inhibition efficiencies of parent amine [(s)-2-amino-5-guanidinopentanoic acid] and parent ketone (anthracene-9 (10H)-one) on carbon steel in 1.0 M hydrochloric acid solution have also been investigated using weight loss studies. The electrochemical and weight loss data established that the inhibition efficiency on CS increases with the increase in the concentration of inhibitor, A9Y5GPA. The adsorption of A9Y5GPA obeys the Langmuir adsorption isotherm. Thermodynamic parameters (Kads, ΔGads0) were calculated using the adsorption isotherm. Activation parameters of the corrosion process (Ea, ΔH* and ΔS*) were also calculated from the corrosion rates obtained from temperature studies. Tafel plot analysis revealed that A9Y5GPA acts as a mixed-type inhibitor. A probable inhibition mechanism was also proposed. Surface morphology of the carbon steel specimens in the presence and absence of the inhibitor was evaluated by SEM analysis.

Paederia Foetida Leaves Extract as a Green Corrosion Inhibitor for Mild Steel in Hydrochloric Acid Solution

2021 ◽  
Author(s):  
Nayem Hossain ◽  
Mohammad Chowdhury ◽  
A.K.M. Parvez Iqbal ◽  
Md. Sariful Islam ◽  
Nur Yusuf Sheikh Omar
Keyword(s):  
Hydrochloric Acid ◽  
Acid Solution ◽  
Mild Steel ◽  
Corrosion Inhibitor ◽  
Hydrochloric Acid Solution ◽  
Green Corrosion Inhibitor ◽  
Paederia Foetida

Adsorption Behavior and Corrosion Inhibition of S-Benzyl o-Phenylenedioxydithiophosphate for Carbon Steel in Hydrochloric Acid Solution

2014 ◽  
Vol 937 ◽  
pp. 109-112
Author(s):  
Xiu Lan Zhang ◽  
Xiao Lin ◽  
Bin Xie ◽  
Li Ke Zou ◽  
Sha Sha Zhu ◽  
...  
Keyword(s):  
Weight Loss ◽  
Carbon Steel ◽  
Hydrochloric Acid ◽  
Acid Solution ◽  
Corrosion Inhibition ◽  
Hydrochloric Acid Solution ◽  
Hydrochloric Acid Concentration ◽  
Carbon Steel Surface ◽  
Effects Of Temperature ◽  
Mixed Type Inhibitor

The corrosion inhibition of S-benzyl o-phenylenedioxydithiophosphate (BPOTP), for carbon steel in hydrochloric acid solution was studied by electrochemical measurements and weight loss measurements. Polarization curves indicate BPOTP is a mixed-type inhibitor, and the effects of temperature, hydrochloric acid concentration and immersion time were also studied. The studies of weight loss measurement show that the inhibition efficiency was up to 92.82 % at the BPOTP concentration of 40 mg·L-1 in 1.0 M hydrochloric acid solution at 30°C. The adsorption of BPOTP on carbon steel surface obeys the Langmuir isotherm.

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