scholarly journals 2-Amino-1-(4-aminophenyl)-1H-pyrrolo(2,3-b)quinoxaline-3- carbonitrile as an efficient inhibitor for the corrosion of C38 steel in hydrochloric acid solution

2020 ◽  
pp. 2326-2334
Author(s):  
M Lebrini ◽  
Keyword(s):  
Hydrochloric Acid ◽  
Acid Solution ◽  
Hydrochloric Acid Solution ◽  
Efficient Inhibitor ◽  
C38 Steel

Inhibitive effect of imidazopyridine derivative towards corrosion of C38 steel in hydrochloric acid solution

2012 ◽  
Vol 39 (6) ◽  
pp. 2369-2377 ◽  
Author(s):  
A. Ghazoui ◽  
R. Saddik ◽  
B. Hammouti ◽  
A. Zarrouk ◽  
N. Benchat ◽  
...  
Keyword(s):  
Hydrochloric Acid ◽  
Acid Solution ◽  
Hydrochloric Acid Solution ◽  
C38 Steel

scholarly journals Chemical Composition and Inhibition Effect of Eucalyptus Botryoides on the Corrosion of C38 Steel in Hydrochloric Acid Solution

2020 ◽  
Vol 11 (3) ◽  
pp. 10119-10130
Keyword(s):  
Hydrochloric Acid ◽  
Acid Solution ◽  
Hydrochloric Acid Solution ◽  
Gravimetric Method ◽  
Electrochemical Measurements ◽  
Protective Film ◽  
Inhibition Effect ◽  
Eds Analysis ◽  
C38 Steel ◽  
Sem Morphology

In this paper research, the inhibition effect of Eucalyptus Botryoides essential oil (EO) on the corrosion of C38 steel in hydrochloric acid solution was investigated. Gravimetric method and electrochemical measurements, SEM morphology, and EDS analysis were used to verify this effect. The gravimetric results were showed that the concentration effect decreases the corrosion rate of C38 steel, which was confirmed by the electrochemical measurements. The potentiodynamic polarization results were exhibited that the EO inhibits the anodic and cathodic sites on the metal surface, and the EIS results were showed that the EO decreases the charge transfer at the interface metal/solution, without change the mechanism. The inhibition efficiency was found in order of 90 % at a maximum concentration of 2.4 g/L. SEM morphology and EDS analysis were proved the effective inhibition of EO by forming a protective film. The temperature effect was also realized, and the results show that the EO is also an effective inhibitor at high temperatures. These findings will have significant results in regard to industrial applications.

Effect of some tripodal bipyrazolic compounds on C38 steel corrosion in hydrochloric acid solution

2010 ◽  
Vol 40 (9) ◽  
pp. 1575-1582 ◽  
Author(s):  
B. Zerga ◽  
A. Attayibat ◽  
M. Sfaira ◽  
M. Taleb ◽  
B. Hammouti ◽  
...  
Keyword(s):  
Hydrochloric Acid ◽  
Acid Solution ◽  
Hydrochloric Acid Solution ◽  
Steel Corrosion ◽  
C38 Steel

A 35Cl magnetic resonance study of chloride exchange on indium(III) and thallium(III) in aqueous hydrochloric acid solution

1975 ◽  
Vol 28 (9) ◽  
pp. 1901 ◽  
Author(s):  
SF Lincoln ◽  
AC Sandercock ◽  
DR Stranks
Keyword(s):  
Exchange Rate ◽  
Magnetic Resonance ◽  
Hydrochloric Acid ◽  
Acid Solution ◽  
Hydrochloric Acid Solution ◽  
Magnetic Resonance Study ◽  
Aqueous Hydrochloric Acid ◽  
Chloride Exchange ◽  
Lower Limits ◽  
Aqueous Hydrochloric Acid Solution

The parameters describing chloride exchange on indium(III), determined by 35Cl N.M.R., are: k(298 K)= (8.8�0+4) x 106 s-1, ΔH? = 45.7�2.3 kJ mol-1 and ΔS? = 42�8 J mol-1 K-1; and k(298 K)= (2.0�0.1)x106 s-1, ΔH? = 37.7�1.9 kJ mol-1, and ΔS? = 3�6 J mol-1 K-1 in 10.95M and 7.00M aqueous hydrochloric acid respectively, calculated from the observed exchange rate kex4[InCl4(H2O)2-].��� For thallium(III) lower limits of kex(219 K) = 1.6 x 106 s-1 and 1.3 x 106 s-1 were obtained in 10.95M and 7.00M aqueous hydrochloric acid, respectively, where [TlCl6]3- is assumed to be the exchanging species.

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