Electrochemical Analysis of the Influence of Purines on Copper, Steel and Some Other Metals Corrosion

Abstract

Metals stability and corrosion resistance are very important factors that influence the possibility of their applications. In order to study and foresee the behavior of metals during various applications in all kinds of conditions and media, numerous approaches and techniques are developed and applied. Among those techniques, electrochemical measurements nowadays have a dominant role since they are proved to be highly efficient, reliable, fast, relatively low-cost, and easy regarding the preparation and execution of measurements. Besides that, they also provide quite a good amount of data regarding the effect and the mechanism of the reactions that metals interact in. Metals corrosion is reduced by various methods, one of the most frequently used ones is the application of corrosion inhibitors. Usually, organic compounds are studied as potential corrosion inhibitors, and at the moment the focus is on the effect on the environment. Hence, environmentally friendly and non-toxic inhibitors are important research topics. Purines, since they are the group of bioorganic compounds found in numerous biochemical structures such as DNA and RNA, present a very interesting possible solution and are studied as inhibitors of corrosion for copper, steel, aluminum, etc., as well as for some metal alloys. Data obtained and available up until the present are presented and discussed in this review.

Corrosion inhibition effects of organic compounds on carbon steel research progress: a visualization analysis based on CiteSpace

“…With the widespread use of metal products other than carbon steel, such as stainless steel, copper and aluminum, the corrosion of these materials in specific environments has become a pressing issue. In addition to research on the corrosion mitigation of carbon steel, recent studies on the corrosion inhibition of organic compounds on other metal materials like stainless steel, copper and aluminum have also garnered attention [88][89][90][91][92].…”

Experimental and Theoretical Evaluations: Green Synthesis of New Organic Compound bis ethanethioyl oxalamide as Corrosion Inhibitor for Copper in 3.5% NaCl

“…The formed CuCl, which is not sufficiently protective, and dissolves when it reacts with excess chloride [6][7][8]. The inhibitors can be introduced to the medium or coated on the metal surface to slow down the corrosion process to avoid corrosion in the metal used in such corrosive media, both methods work well [9][10][11][12][13]. Several investigators have reported [5][6][7][8] that organic compounds can act as possible corrosion inhibitors for numerous metals and alloys in various corrosive media.…”