Experimental and surface morphological studies of corrosion inhibition on carbon steel in HCl solution using some new hydrazide derivatives

The inhibitory effect of three newly synthesized hydrazide derivatives on carbon steel corrosion in hydrochloric acid showed better inhibition efficiency (97.5%) and their inhibition mechanism is presented.

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

ISRN Electrochemistry ◽

10.1155/2013/820548 ◽

2013 ◽

Vol 2013 ◽

pp. 1-8 ◽

Cited By ~ 1

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.

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Investigation of the corrosion inhibition of carbon steel in hydrochloric acid solution by using ginger roots extract

RSC Advances ◽

10.1039/c6ra28636d ◽

2017 ◽

Vol 7 (40) ◽

pp. 24576-24588 ◽

Cited By ~ 32

Author(s):

H. S. Gadow ◽

M. M. Motawea

Keyword(s):

Carbon Steel ◽

Hydrochloric Acid ◽

Acid Solution ◽

Corrosion Inhibition ◽

Hydrochloric Acid Solution ◽

Adsorption Behavior ◽

Different Temperatures ◽

Hcl Solution

The inhibitive effect and adsorption behavior of ginger roots extract (GRE) on the corrosion of carbon steel in 1.0 M HCl solution at different temperatures were investigated.

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Study the corrosion inhibition of mix of caffeine and iodua for CT3 steel in 1M HCl solution by electrochemical methods

VNU Journal of Science Natural Sciences and Technology ◽

10.25073/2588-1140/vnunst.4315 ◽

2017 ◽

Vol 33 (3) ◽

Author(s):

Truong Thao

Keyword(s):

Carbon Steel ◽

Corrosion Inhibition ◽

Inhibition Efficiency ◽

Electrochemical Methods ◽

Anodic Reaction ◽

Mild Carbon Steel ◽

Current Densities ◽

Hcl Solution ◽

Surface Observations

Abstract: Corrosion inhibition of mild carbon steel, CT3, in 1.0 M HCl solution by iodide (with different concentrations, from 0.1g/l to 5.0g/l), mix of caffeine and iodide was investigated by electrochemical methods and micro surface observations (SEM). Experiment result showed that: (1) as the concentration of iodide increases, the inhibition efficiency increases; Iodide acts as a mix – type inhibitor but inhibits anodic reaction is predominant. (2) Mix of 1.0 g/l iodide ang caffeine acts as a typical mix – type inhibitor. the current densities of both of anodic and cathode are decline when concentration of caffeine is 1.0 g/l or more. Inhibition efficiency max is approximately 96% at concentration of 5.0 g/l caffeine, the inhibition efficiency maintained relatively stable within 5 days.

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Corrosion inhibition of some azole derivatives on carbon steel in hydrochloric acid solution

Anti-Corrosion Methods and Materials ◽

10.1108/acmm-05-2013-1266 ◽

2014 ◽

Vol 61 (5) ◽

pp. 300-306 ◽

Cited By ~ 6

Author(s):

B.P. Markhali ◽

R. Naderi ◽

M. Sayebani ◽

M. Mahdavian

Keyword(s):

Carbon Steel ◽

Hydrochloric Acid ◽

Organic Compounds ◽

Corrosion Inhibitors ◽

Inhibition Efficiency ◽

Electrochemical Impedance ◽

Acid Corrosion ◽

Molecular Structures ◽

Inhibition Mechanism ◽

Content Type

Purpose – The purpose of this paper is investigate the inhibition efficiency of three similar bi-cyclic organic compounds, namely, benzimidazole (BI), benzotriazole (BTAH) and benzothiazole (BTH) on carbon steel in 1 M hydrochloric acid (HCl) solution. Organic inhibitors are widely used to protect metals in acidic media. Among abundant suggestions for acid corrosion inhibitors, azole compounds have gained attention. Design/methodology/approach – The inhibition efficiency of the three organic compounds was investigated using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). Findings – Superiorities of BTH and BTAH corrosion inhibitors were shown by EIS data and polarization curves. Moreover, the results revealed that BTAH and BTH can function as effective mixed-type adsorptive inhibitors, whereas no inhibition behavior was observed for BI. Both BTAH and BTH obeyed Longmuir adsorption isotherm. The results obtained from this isotherm showed that both inhibitors adsorbed on the specimen surface physically and chemically. The difference in inhibition efficiencies of BTAH, BTH and BI was related to the presence of nitrogen and sulfur hetero atoms on their molecular structures. Originality/value – This study evaluated inhibition efficiency of BI, BTAH and BTH using electrochemical methods. In addition, the study attempted to find inhibition mechanism of the inhibitors and to find modes of adsorption of the inhibitors, correlating effects of heteroatoms and inhibition efficiency.

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

Oriental Journal Of Chemistry ◽

10.13005/ojc/340532 ◽

2018 ◽

Vol 34 (5) ◽

pp. 2471-2476 ◽

Cited By ~ 1

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.

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A Study of Corrosion Inhibition of Carbon Steel in Hydrochloric Acid Using BIMGCS12-3

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.427.3 ◽

2012 ◽

Vol 427 ◽

pp. 3-6 ◽

Cited By ~ 1

Author(s):

Yong Ming Sun ◽

Hong Ling Chen

Keyword(s):

Melting Point ◽

Carbon Steel ◽

Hydrochloric Acid ◽

Corrosion Inhibition ◽

Elemental Analysis ◽

Inhibition Efficiency ◽

Raw Materials ◽

Ammonium Bromide ◽

Target Compound ◽

H Nmr

Gemini benzimidazole cationic surfactant, propanediyl-α, ω-bis-(N-dodecyl benzimidazole ammonium bromide), referred as BIMGCS12-3, was synthesized from the raw materials of benzimidazole, dodecane bromide and dibromopropane. The structure of the target compound was confirmed by1H NMR, elemental analysis and melting point measurements. Its surface properties were determined and corrosion inhibition of carbon steel in 1M HCl was investigated by gravimetric measurements. BIMGCS12-3 exhibited excellent protection for carbon steel in the low concentration 20mg L-1and the inhibition efficiency for corrosion decreased with increment of temperature.

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INHIBITION EFFECT OF DODECYLAMINE ON CARBON STEEL CORROSION IN HYDROCHLORIC ACID SOLUTION

Surface Review and Letters ◽

10.1142/s0218625x12500606 ◽

2012 ◽

Vol 19 (06) ◽

pp. 1250060

Author(s):

ZHENYU CHEN ◽

LING HUANG ◽

YUBING QIU ◽

XINGPENG GUO

Keyword(s):

Carbon Steel ◽

Hydrochloric Acid ◽

Acid Solution ◽

Hydrochloric Acid Solution ◽

Steel Surface ◽

Steel Corrosion ◽

Inhibition Mechanism ◽

Polar Group ◽

Exponential Factor ◽

Carbon Steel Surface

Dodecylamine spontaneously adsorbs on carbon steel via its polar group (-NH2) in hydrochloric acid solution. Furthermore, it forms a monolayer film on carbon steel surface. The inhibition mechanism of dodecylamine for carbon steel is geometric blocking effect. The adsorption of dodecylamine on carbon steel surface follows Arrhenius equation. The adsorption slightly increases activated energy, but greatly reduces pre-exponential factor value. Atomic force microscopy force curves indicate that at the area without adsorbed dodecylamine, no obvious adhere force occurs. At the area with adsorbed dodecylamine, however, an average 1.3 nN adhere force is observed.

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