International Journal of Applied Chemistry
  • Year: 2010
  • Volume: 6
  • Issue: 1

Corrosion Inhibition Behaviour of Azardirachta Indica (Neem) Leaves Extract as a Green Corrosion Inhibitor for Zinc in Hydrochloric Acid: A Preliminary Study

  • Author:
  • Sanjay K. Sharma1,, Gargi Jain1, Jyoti Sharma2, Ackmez Mudhoo3
  • Total Page Count: 12
  • Page Number: 83 to 94

1Computational & Green Chemistry Research Laboratory, Institute of Engineering & Technology, MIA, Alwar, India.

2Centre for Applied Research, Department of Chemistry, R.R. (P.G.) College, Alwar, India.

3Department of Chemical and Environmental Engineering, University of Mauritius, Reduit, Mauritius.

* Corresponding Author.

Abstract

The corrosion inhibition behaviour of Neem (Azadirachta indica) mature leaves extract as a green inhibitor of zinc corrosion in hydrochloric acid (HCl) solutions has been studied using gravimetric and thermometric techniques for experiments conducted at 30°C and 60°C. The results revealed that different concentrations of the Azadirachta indica (AZI) extract inhibit zinc corrosion and that inhibition efficiency of the extract varies with concentration and temperature. For extract concentrations studied and ranging from 9.09–23.08mg/L, the maximum inhibition efficiency was 78.33% and 68.95% both at 23.08mg/L AZI at 30°C and 60°C, respectively in 2.0N HCl.

Keywords

Corrosion, Green inhibitor, Zinc, Azadirachta indica extract, Hydrochloric acid