Multicomponent Organic Corrosion Inhibitors: I. Suggested Mechanism of Synergistic Action; II. Improvements of Inhibition in Acid Corrosion of Steel Coupons

1965 ◽  
Vol 4 (4) ◽  
pp. 279-294 ◽  
Author(s):  
C. Duncan ◽  
J. Leja
Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1062
Author(s):  
Norbaayah Ahmad Reza ◽  
Nor Hasrul Akhmal ◽  
Nor Akmal Fadil ◽  
Mohd Firdaus Mohd Taib

Acid corrosion is a problem pertaining to corrosion that involves an acid solution. It is important to treat metal to preserve its integrity. Thus, acids are utilized to clean and treat metal surfaces. In return, this may lead to over-etching and metal degradation. Corrosion inhibitors were introduced as a solution for the issue. However, there are some problems associated with the usage of conventional corrosion inhibitors. Traces of nitrites and chromates that are present in the inhibitors may lead to serious health and environmental issues. As a solution, organic green corrosion inhibitors have been studied to replace the conventional corrosion inhibitors. These inhibitor molecules form a protective layer on top of the metal surface to suppress metal dissolution when added to the acid solution. This process prevents direct contact between the metal surfaces and the acid environment. This study explores the usage of natural resources and biomass wastes as the basis for organic green corrosion inhibitors. This study also provides some suggestions for new biomass wastes that can be studied as new organic corrosion inhibitors, and it is aimed at opening the perspective of researchers on exploring new organic inhibitors by using natural resources and biomass wastes.


2020 ◽  
Vol 93 (11) ◽  
pp. 1638-1645
Author(s):  
M. R. Bayramov ◽  
G. M. Askarova ◽  
G. M. Mehdiyeva ◽  
M. A. Agayeva ◽  
I. G. Mammadov ◽  
...  

RSC Advances ◽  
2017 ◽  
Vol 7 (46) ◽  
pp. 29042-29050 ◽  
Author(s):  
Lei Guo ◽  
Chengwei Qi ◽  
Xingwen Zheng ◽  
Renhui Zhang ◽  
Xun Shen ◽  
...  

Compared with the conventional DFT approach, SCC-DFTB method is more effective to deal with the adsorption issues of large size organic corrosion inhibitors on metal surface.


1998 ◽  
Vol 41 (3) ◽  
pp. 501-517 ◽  
Author(s):  
M. Bouayed ◽  
H. Rabaa ◽  
A. Srhiri ◽  
J.-Y. Saillard ◽  
A.Ben Bachir ◽  
...  

2004 ◽  
Vol 77 (7) ◽  
pp. 1117-1120 ◽  
Author(s):  
R. I. Yurchenko ◽  
I. S. Pogrebova ◽  
T. N. Pilipenko ◽  
T. E. Shubina

2019 ◽  
Vol 14 (2) ◽  
pp. 123-128
Author(s):  
Sarah Kareem Mohammed

Corrosion of steel reinforcement is one of the biggest problems facing all countries in the world like bridges in the beach area and marine constructions which lead to study these problems and apply some economical solutions. According to the high cost of repair for these constructions, were studied the effect of using kind of chemical compounds sodium nitrite(NaNO2) and sodium silicate(Na2SiO3) as corrosion inhibitors admixture for steel bars that immersed partially in electrolyte solution (water + sodium chloride in 3% conc.) (Approximately similar to the concentration of salt in sea water). The two inhibitors above added each one to the electrolyte solution at concentrations (0.5%, 1% and 2%) for both of them.      The results were  corrosion rate for steel sample that's immersed partially in salt solution was higher than corrosion rate of steel bar that's immersed partially in electrolyte solution with inhibitors  also the two corrosion inhibitors (sodium nitrite and sodium silicate) that added to the electrolyte solution were working successfully to prevent and inhibit the corrosion by using weight loss technique with best percent of 0.5% sodium nitrite ( efficiency 94.1% ) and best percent of 2% sodium silicate ( efficiency 92.5%).


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