Article Number: DRJCMS623398016

DOI: https://doi.org/ 10.26765/DRJCMS623398016

ISSN: 2354-4163

Vol.7 (1), pp. 1-6, March 2020

Copyright © 2020

Author(s) retain the copyright of this article


Original Research Article

Synthesis and corrosion inhibition study of mild steel in 0.5 M hydrochloric acid by 1-((2-arbamoylguanidino) (furan-2-ylmethyl) urea

Don-Lawson, C.

Okah,* R.

Orie, K. J.


Abstract

The corrosion inhibition of mild steel in, 0.5M HCl solution by 1-((2-arbamoylguanidino) (furan-2-ylmethyl) urea (CFU) was investigated using weight loss experiment at different temperature (30oC, 40oC, 50oC). The CFU was synthesized and characterized using FTIR and 1HNMR. The finding indicates that CFU acts as an effective corrosion inhibitor for mild steel in hydrochloric acid solution. The inhibition efficiency and surface coverage of mild steel increased with increasing concentration of CFU, but reduced as temperature increases. Langmuir adsorption isotherm and freundlick adsorption isotherm were used to deduce that the adsorption mechanism was physical adsorption. The estimation of the adsorption also determined the free Gift’s energy at the range of -12KJmol-1 to -14KJmol-1, which implies that the reaction was spontaneous. The inhibitive ability of CFU was attributed to the presence of oxygen, nitrogen and aromatic furan in its structure.


Keywords: Inhibition, efficiency, 1-((2-Carbamoylguanidino) (furan-2-ylmethyl) urea, adsorption


 Received: March 3, 2020  Accepted: March 20, 2020  Published: March 30, 2020

Don Lawson Et Al


Copyright © 2020 Direct Research Journal of Chemistry and Material Science