The Inhibition Effect of Ampicillin on Corrosion of Pure Aluminium in 3.5% NaCl Aqueous Solution.

Authors

  • Samar T Hameed Department of Chemistry, College of Science, Al-Nahrain University, Baghdad-Iraq.
  • Taghried A Salman Department of Chemistry, College of Science, Al-Nahrain University, Baghdad-Iraq.
  • Shatha F Al-Saidi Department of Chemistry, College of Science, Al-Nahrain University, Baghdad-Iraq.

Keywords:

Aluminium, saline solution, Corrosion inhibitor, Ampicillin, Quantum studies

Abstract

The Inhibition of the corrosion of pure aluminium in 3.5% NaCl aqueous solution using ampicillin has been studied using potentiodynamic polarization and scanning electron microscopy (SEM) techniques. It was found that the ampicillin effectively reduces the aluminium corrosion in the saline solution. Inhibition efficiency (%IE) is increased as the inhibitor concentration increases; on the other hand, (%IE) is decreased when the temperature increases. The adsorption of inhibitor on metal surface was spontaneous and follows Langmuir adsorption isotherm. Quantum mechanical has been accomplished using B3LYP/6-31G basis set method to ascertain any correlation between the inhibitive effect and molecular structure of ampicillin.

Author Biographies

  • Samar T Hameed, Department of Chemistry, College of Science, Al-Nahrain University, Baghdad-Iraq.



     

  • Shatha F Al-Saidi, Department of Chemistry, College of Science, Al-Nahrain University, Baghdad-Iraq.




Published

2018-06-07

Issue

Section

Articles

How to Cite

(1)
The Inhibition Effect of Ampicillin on Corrosion of Pure Aluminium in 3.5% NaCl Aqueous Solution. ANJS 2018, 18 (3), 50-61.