An investigation of aluminum (Al-63400) corrosion inhibition in hydrochloric acid medium by semi-ripe arecanut husk extract: an eco-friendly suitable green inhibitor

  • N. Raghavendra
  • J. Ishwara BhatEmail author
Original Paper


The natural chemicals from the extract of semi-ripe arecanut husk were isolated and tested as an eco-friendly inhibitor for aluminum (Al-63400) corrosion in an acid (HCl) medium using mass loss (in the temperature range 303–323 K), electrochemical Tafel (at 303 K) and impedance (at 303 K) techniques. The mass loss experiment reveals that inhibition action depends on plant extract concentration, temperature and duration of the analysis. Tafel curves hinted the mixed role of the natural extract. The Nyquist curve showed that Al dissolution in hydrochloric medium is significantly controlled via the charge transfer phenomenon.


Corrosion Hydrochloric acid Mass loss Nyquist plot Al surface 



Narasimha Raghavendra is thankful to Dr. B.E. Kumaraswamy (Kuvempu University) for the CHI660C instrument facility.

Compliance with ethical standards

Conflict of interest

Both the authors declare no conflict of interest.


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of ChemistryK.L.E. Society’s P. C. Jabin Science College (Autonomous)HubballiIndia
  2. 2.Department of ChemistryMangalore UniversityMangaloreIndia

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