EFFECT OF 5-NITRO-2-FURALDEHYDE ON CORROSION OF CARBON STEEL

Autor: Abdurrahman ASAN
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Journal of the Turkish Chemical Society Section B: Chemical Engineering, Vol 2, Iss 2, Pp 137-142 (2019)
Druh dokumentu: article
ISSN: 2564-6907
Popis: Evaluation of corrosion inhibitors for carbon steel in chlorinated environments is very important for some industrial plants. For this purpose, the inhibitory effect of 5-nitro-2-furaldehyde on the corrosion of carbon steel in aqueous solution of 0.1 M NaCl and 0.1 M HCl was investigated. Cyclic voltagrams were taken to determine the electrochemical behavior of carbon steel in non-inhibitory and inhibitory environments. The corrosion rates of carbon steel in the presence of 5-nitro-2-furaldehyde in different concentrations (10, 20, 50 and 100 ppm) were measured by the Tafel Polarization method. As the inhibitor concentration increased, no significant change was detected in the 0.1 M HCl medium. In the 0.1 M NaCl environment, the corrosion potential has shifted to values that are more positive and the corrosion current has been reduced. This indicates that the inhibitors form a film on the surface of metal in this environment and create resistance to corrosion. The best inhibitory activity was achieved with an inhibitor concentration of 100 ppm in 0.1 M NaCl medium.
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