Study of corrosion inhibition of Aluminum in nitric acid solution using Anisaldehyde (4-methoxy benzaldehyde) as corrosion inhibitor

October 08, 2019

  • Musa Husaini Faculty of Physical Sciences, Department of Pure and Industrial Chemistry, Bayero University, P.M.B. 3011 BUK, Kano. Nigeria
  • Bishir Usman Faculty of Physical Sciences, Department of Pure and Industrial Chemistry, Bayero University, P.M.B. 3011 BUK, Kano. Nigeria
  • Muhammad Bashir Ibrahim Faculty of Physical Sciences, Department of Pure and Industrial Chemistry, Bayero University, P.M.B. 3011 BUK, Kano. Nigeria
Keywords: Aluminum, Corrosion, weight loss, FTIR analysis, activation parameters and adsorption isotherm.

Abstract

The inhibitive action of Anisaldehyde (4–methoxy benzaldehyde) on corrosion of Aluminum in nitric acid solution was studied through weight loss method. Fourier Transform Infrared Spectroscopic Analysis (FTIR) was used to characterize the inhibitor and the corrosion product. The effect of different inhibitor concentrations was studied at 308, 313 and 318 K. The present study showed that the percentage of inhibition efficiency (% I.E.) is enhanced with increase of inhibitor concentration and decrease with rising in temperature. Maximum I.E. of Anisaldehyde was found 86.32 % at 308 K and 0.1M inhibitor concentration in 1.4M HNO3 solution. The inhibitive action of the inhibitor is discussed in view of adsorption of Anisaldehyde molecule on the metal surface. It was found that the adsorption of the inhibitor on the metal surface follows Langmuir adsorption isotherm. Activation parameters governing the adsorption process were evaluated and discussed in detail.

DOI

Cite as: Husaini, M., Usman, B., Ibrahim, M. B. (2019). Study of corrosion inhibition of Aluminum in nitric acid solution using Anisaldehyde (4 - methoxy benzaldehyde) as inhibitor. Algerian Journal of Engineering and Technology, http://dx.doi.org/10.5281/zenodo.3477599

Published
2019-10-08
Section
Articles