scholarly journals Synthesis of Novel Corrosion Inhibitor N-(1,3-Benzothiazol-2-yl)-4-aminobenzamide in 1 N Hydrochloric Acid Medium

2021 ◽  
Vol 33 (3) ◽  
pp. 622-626
Author(s):  
Senthilkumar Gopal ◽  
Umarani Chinnasamy ◽  
Ramachandran Arumugam
Keyword(s):  
Hydrochloric Acid ◽  
Corrosion Inhibitor ◽  
Acid Medium ◽  
Inhibition Efficiency ◽  
Nmr Studies ◽  
Steel Material ◽  
Hydrochloric Acid Medium ◽  
Different Temperatures ◽  
Corrosion Inhibition Efficiency ◽  
Loss Method

A novel corrosion inhibitor i.e. N-(1,3-benzothiazol-2-yl)-4-aminobenzamide was synthesized and its corrosion inhibitor on controlling the rate of mild steel material in hydrochloric acid medium (1 N) at different temperatures was investigated. Rate of corrosion and inhibition efficiency were analyzed and calculated using mass loss method and electrochemical studies. As the concentration of the inhibitor increase the inhibitor efficiency also increases gradually with decrease in the rate of corrosion. Therefore from this study the efficiency of the inhibitor was good at different temperature in 1 N HCl. The relative corrosion inhibition efficiency of synthesized organic compound has been explained on the basis of its structure dependent-electron donating properties of the inhibitor. Further the structure and compound present in the synthesized organic inhibitor compound was confirmed by FTIR and NMR studies.

scholarly journals Influence of Formazan Derivatives on Corrosion Inhibition of Mild Steel in Hydrochloric Acid Medium

2009 ◽  
Vol 6 (s1) ◽  
pp. S438-S444 ◽  
Author(s):  
P. Venkatesan ◽  
B. Anand ◽  
P. Matheswaran
Keyword(s):  
Hydrochloric Acid ◽  
Mild Steel ◽  
Corrosion Inhibition ◽  
Inhibition Efficiency ◽  
First Order Kinetics ◽  
Hydrochloric Acid Medium ◽  
Weight Loss Method ◽  
Corrosion Inhibition Efficiency ◽  
Loss Method ◽  
Kinetic Treatment

Formazan of benzaldehyde (FB) and formazan ofp-dimethyl amino benzaldehyde (FD) were synthesized. These compounds were studied as corrosion inhibitor for mild steel in 1.11 N hydrochloric acid by weight loss method. The result showed that the corrosion inhibition efficiency of these compounds was found to vary with the temperature and acid concentration. Also, it was found that the corrosion inhibition behaviour of FD is greater than that of FB. The kinetic treatment of the results gave first order kinetics. The relative corrosion inhibition efficiency of these compounds has been explained on the basis of structure dependent - electron donor properties of the inhibitors.

scholarly journals Inhibition Effect of Miconazole Nitrate on the Corrosion of Mild Steel in Hydrochloric Acid Medium

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
J. Ishwara Bhat ◽  
Vijaya D. P. Alva
Keyword(s):  
Hydrochloric Acid ◽  
Mild Steel ◽  
Acid Medium ◽  
Inhibition Efficiency ◽  
Electrochemical Impedance ◽  
Inhibitor Molecule ◽  
Langmuir Adsorption ◽  
Hydrochloric Acid Medium ◽  
Miconazole Nitrate ◽  
Impedance Spectroscopy Technique

The corrosion inhibition of mild steel by miconazole nitrate, an antifungal drug has been investigated using potentiodynamic polarization, electrochemical impedance spectroscopy technique, and weight loss methods. The experimental results suggested miconazole nitrate is a good corrosion inhibitor for mild steel in 1 M hydrochloric acid medium. The inhibition efficiency increased with increase in inhibitor concentration. The thermodynamic parameters were determined and discussed. The inhibition was assumed to occur via adsorption of the inhibitor molecule on the surface of mild steel following Langmuir adsorption isotherm.

scholarly journals New Aromatic Azo-Schiff as Carbon Steel Corrosion Inhibitor in 1 M H2SO4

2018 ◽  
Vol 34 (5) ◽  
pp. 2471-2476 ◽  
Author(s):  
Hamida Edan Salman ◽  
Asim A. Balakit ◽  
Ali Ahmed Abdulridha
Keyword(s):  
Weight Loss ◽  
Carbon Steel ◽  
Corrosion Inhibitor ◽  
Corrosion Inhibition ◽  
Potentiodynamic Polarization ◽  
Inhibition Efficiency ◽  
Steel Corrosion ◽  
Spectroscopic Techniques ◽  
Different Temperatures ◽  
Corrosion Inhibition Efficiency

A new aromatic Schiff base with azo linkage (AS) has been synthesized and characterized by FT-IR, 1H NMR and 13C NMR spectroscopic techniques. The new compound (AS) has been evaluated as carbon steel corrosion inhibitor at different concentrations (0.005, 0.01, 0.02, 0.04 and 0.08 mM) and different temperatures (303 – 333 K). The corrosion inhibition efficiency was studied by potentiodynamic polarization and weight loss measurements. The effects of concentration and temperature on the inhibition efficiency were studied by potentiodynamic polarization studies, the results showed that increasing concentration of AS increases the inhibition efficiency while increasing the temperature decreases it, the highest corrosion inhibition efficiency, 93.9% was recorded with 0.08 mM of AS at 313 K in 1 M H2SO4. Weight loss measurements showed that the inhibition efficiency reached 97.1% in the presence of AS (0.08 mM) at 313 K. The adsorption process was found to obey Langmuir isotherm, and the adsorption thermodynamic parameters were studied. Scanning electron microscope (SEM) was used to confirm the results.

Potential of dibenzo-18-crown-6-ether derivatives as a corrosion inhibitor on mild steel in HCl medium: electrochemical and computational approaches

2021 ◽  
Vol 45 (15) ◽  
pp. 6826-6842
Author(s):  
Priya Kumari Paul ◽  
Mahendra Yadav ◽  
I. B. Obot
Keyword(s):  
Hydrochloric Acid ◽  
Mild Steel ◽  
Corrosion Inhibitor ◽  
Acid Medium ◽  
Corrosion Inhibition ◽  
Computational Approaches ◽  
Hydrochloric Acid Medium ◽  
Hcl Medium

The corrosion inhibition behaviour of the macrocyclic dibenzo-18-crown-6 derivatives BOH and OHB was investigated experimentally and theoretically on mild steel in a 15% hydrochloric acid medium.

scholarly journals Mangifera odorata GRIFF SEED EXTRACT AS CORROSION INHIBITOR OF MILD STEEL IN HYDROCHLORIC ACID MEDIUM

2020 ◽  
Vol 13 (01) ◽  
pp. 230-239
Author(s):  
Y. Stiadi ◽  
Rahmayeni ◽  
L. Rahmawati ◽  
M. Efdi ◽  
H. Aziz ◽  
...  
Keyword(s):  
Hydrochloric Acid ◽  
Mild Steel ◽  
Corrosion Inhibitor ◽  
Acid Medium ◽  
Seed Extract ◽  
Hydrochloric Acid Medium

Corrosion inhibition of aluminium in hydrochloric acid medium using cimetidine as inhibitor: empirical and optimization studies

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Okechukwu Okechukwu Onukwuli ◽  
Benson Chinweuba Udeh ◽  
Monday Omotioma ◽  
Ikechukwu Abuchi Nnanwube
Keyword(s):  
Response Surface Methodology ◽  
Hydrochloric Acid ◽  
Corrosion Inhibitor ◽  
Response Surface ◽  
Acid Medium ◽  
Functional Groups ◽  
Corrosion Inhibition ◽  
Content Type ◽  
Hydrochloric Acid Medium ◽  
Inhibition Process

Purpose The purpose of this study was to investigate cimetidine as corrosion inhibitor of aluminium in hydrochloric acid medium. Design/methodology/approach Cimetidine was characterized by gas chromatography mass spectrophotometer and Fourier transform infrared spectroscopy to determine its chemical composition and functional groups, respectively. Gravimetric, potentiodynamic polarization and electrochemical impedance spectroscopic techniques were used in the corrosion inhibition process. Thermodynamic and adsorption parameters were evaluated. And response surface methodology was used to optimize the corrosion inhibition process. Findings Analysis of the results revealed that major constituents of cimetidine include metronidazole, n-hexadecanoic acid cyclohexane and methyl ester. It has C-H stretch, C = N stretch, CH3C-H bend, ring C = C stretch, -C-O-O stretch, N-H bend, C-O stretch and C-H bend as predominant functional groups. Adsorption of molecules of the inhibitor on the aluminium surface was spontaneous, and it followed mechanism of physical adsorption. Response surface methodology revealed that quadratic model adequately described the inhibition efficiency of cimetidine as function of inhibitor concentration, temperature and time. Chemical and electrochemical results are in agreement that the cimetidine is a viable corrosion inhibitor. Cimetidine was revealed as mixed-type inhibitor because it controlled both cathodic and anodic reactions. Originality/value Empirical and optimization studies of cimetidine drug as corrosion inhibitor of aluminium in hydrochloric acid medium were carried out. The research results can provide the basis for deploying drugs (with mucosal protective and antacid properties) for corrosion control of metallic structures.

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