Green Inhibitors for Corrosion Protection of Metals and.
Four protic ionic liquids (ILs) were synthesized via a one-step method by using benzotriazole (BTA) and benzimidazole as cations, and benzenesulfonic acid and 2-naphthalenesulfonic acid (NSA) as anions. These ILs were used as green corrosion inhibitors for brass specimens in a nitric acid solution.
Corrosion inhibitors provide protection to metals and alloy against corrosion, but organic inhibitors are toxic in nature whereas green inhibitors are biodegradable and no toxic compound are.
The established method of dealing with corrosion involves applying a chemical inhibitor. However, most corrosion inhibitors in regular use have problems—they may be toxic, carcinogenic, or difficult to dispose of. The search is on for one that is environmentally friendly and safe to use.
In addition withplant extracts, polymers are also acting as green corrosion inhibitors, because they form complexes with metal and its surface. 2There are number of polymers which acts asgood corrosion inhibitorsand some of them are, starch, polyethylene glycol, polyvinyl pyrrolidone, polyvinyl alcohol, polyvinyl pyridine, polyethylenimine(22-28).
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Effect of GLV Concentration. The results indicate that the corrosion rate of carbon steel has decreased with increasing inhibitors concentration. The values of corrosion rates (C.R), and the inhibition efficiency (E inh %) obtained from the weight loss for different inhibitors concentrations at room temperature in 1 M HCl are given in Table 2. From the values obtained, it is obvious that there.
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