scholarly journals Corrosion Investigation of Mild Steel in Aqueous Hydrochloric Acid Environment Using N-(Naphthalen-1-yl)-1-(4-Pyridinyl)Methanimine Complemented with Antibacterial Studies

2020 ◽  
Vol 11 (2) ◽  
pp. 9735-9743
Keyword(s):  
Hydrochloric Acid ◽  
Mild Steel ◽  
Steel Corrosion ◽  
Gram Negative Bacteria ◽  
Langmuir Adsorption ◽  
Gram Positive Bacteria ◽  
Mild Steel Corrosion ◽  
Acid Environment ◽  
Steel Coupon ◽  
Corrosion Investigation

The inhibitive performance of N-(naphthalen-1-yl)-1-(4-pyridinyl)methanimine Schiff base on mild steel corrosion in one molar hydrochloric acid environment was investigated by utilizing weight loss techniques. N-(naphthalen-1-yl)-1-(4-pyridinyl)methanimine has significant inhibitive performance on the mild steel corrosion in the corrosive medium. The effect of immersion time (1-24 h) and temperature (303 to 333 K) on the behavior of mild steel corrosion in the absence and presence of the N-(naphthalen-1-yl)-1-(4-pyridinyl)methanimine have also been investigated. The adsorption of N-(naphthalen-1-yl)-1-(4-pyridinyl)methanimine molecules on the surface of mild steel follows Langmuir adsorption isotherm. The surface morphology of the mild steel coupon was investigated by scanning electron microscopy. The antibacterial efficiencies of N-(naphthalen-1-yl)-1-(4-pyridinyl)methanimine for gram-negative bacteria, namely Escherichia coli, and gram-positive bacteria, namely Staphylococcus aureus was studied. The antibacterial activity findings exhibited that the N-(naphthalen-1-yl)-1-(4-pyridinyl)methanimine has significant antibacterial efficiencies against tested microorganisms.

scholarly journals Benzylidene as Efficient Corrosion Inhibition of Mild Steel in Acidic Solution

Proceedings ◽  
2019 ◽  
Vol 41 (1) ◽  
pp. 27
Author(s):  
Shaimaa B. Al-Bghdadi ◽  
Mahdi M. Hanoon ◽  
Jafer F. Odah ◽  
Lina M. Shaker ◽  
Ahmed A. Al-Amiery
Keyword(s):  
Mild Steel ◽  
Inhibition Efficiency ◽  
Gravimetric Method ◽  
Steel Corrosion ◽  
Solution Temperature ◽  
Acidic Environment ◽  
Mild Steel Corrosion ◽  
Electron Microscopy Analysis ◽  
Microscopy Analysis ◽  
Steel Coupon

A New benzylidene derivative namely benzylidene-5-phenyl-1,3,4-thiadiazol-2-amine (BPTA), was successfully synthesized and characterized using Fourier Transform Infrared Spectroscopy, Nuclear Magnetic Resonance and elemental analysis (CHN) techniques. The inhibition efficiency of BPTA on mild steel corrosion in 1.0 N HCl was tested at various temperatures. The methodological work was achieved by gravimetric method complemented with morphological investigation. The concentrations of inhibitor were 0.1, 0.2, 0.3, 0.4 and 0.5 mM at the temperatures 303, 313, 323 and 333 K. The BPTA, molecules as become superior corrosion inhibitor with 92% inhibition efficiency of mild steel coupon in the acidic environment. The inhibition efficiency increased with increasing concentrations of BPTA and the excellent efficiency was performed with the 0.5 mM concentration and followed with 0.4 mM. In acidic environment, the 0.5 and 0.4 mM gave the optimum performance with weight loss technique and scanning electron microscopy analysis. On the other hand, the inhibition efficiency decreased with the increase of temperature. Results of BPTA indicated mixed type inhibitor and the adsorption on the mild steels surface obeys the Langmuir adsorption isotherm. It was found that the BPTA performance depend on the concentration and the solution temperature. Quantum chemical calculations have been done to correlate the electronic characteristics of BPTA with the corrosive inhibitive impact. Experimental and theoretical results are in good agreement.

Inhibition and mechanism of Terminalia catappa on mild-steel corrosion in sulphuric-acid environment

2016 ◽  
Vol 10 (4) ◽  
pp. 398 ◽  
Author(s):  
Abimbola Patricia Idowu Popoola ◽  
Cleophas Akintoye Loto ◽  
Chukwunonso Ezekiel Obi ◽  
Ekundayo Oluwademilade Jacob Fademi ◽  
Thomas Oluwafemi Makinwa ◽  
...  
Keyword(s):  
Mild Steel ◽  
Sulphuric Acid ◽  
Steel Corrosion ◽  
Terminalia Catappa ◽  
Mild Steel Corrosion ◽  
Acid Environment

scholarly journals Inhibiting Effects of Rabeprazole Sulfide on the Corrosion of Mild Steel in Acidic Chloride Solution

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
M. K. Pavithra ◽  
T. V. Venkatesha ◽  
M. K. Punith Kumar
Keyword(s):  
Mild Steel ◽  
Electrochemical Impedance ◽  
Steel Corrosion ◽  
Protection Efficiency ◽  
Langmuir Adsorption ◽  
Kinetic And Thermodynamic Parameters ◽  
Mild Steel Corrosion ◽  
Acidic Chloride Solution ◽  
Acidic Chloride ◽  
Mixed Type Inhibitor

The corrosion inhibition effect of Rabeprazole sulfide (RS) on mild steel in 1 M hydrochloric acid (HCl) was investigated using weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), and chronoamperometric measurements. Protection efficiency of RS increases with the concentration and decreases with the rise in temperature. Adsorption of RS on mild steel surface in 1 M HCl follows Langmuir adsorption isotherm. The kinetic and thermodynamic parameters governing the adsorption process were calculated and discussed. The polarization results suggest that RS performed as an excellent mixed-type inhibitor for mild steel corrosion in 1 M HCl.

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