EKSTRAK METANOL DARI DAUN MAHKOTA DEWA (Phaleria macrocarpa) SEBAGAI INHIBITOR KOROSI BAJA DALAM ASAM KLORIDA

Authors

  • Azimatur Rahmi
  • Emriadi -
  • Admin Alif

DOI:

https://doi.org/10.25077/jrk.v7i2.168

Abstract

Vol 7 No 2

ABSTRACT
Extract of Phaleria macrocarpa leaves have been studied as corrosion inhibitor for mild steel of
hydrochloric acid solution 2.0 N. The efficiency of inhibition was evaluated by gasometric method
and electrochemical analysis. The temperature and concentration effects on the inhibitors
performance were also investigated. The result obtained showed that the extract is one of promising
candidate as an inhibitors for the corrotions of mild steel in HCl media, inhibition efficiency
increase as the extract concentration is evaluated. The activation energy (Ea) increase with the
addition of the extract. Where inhibition of extract on the steel surface obey modified Langmuir
isotherm equation. Potentiodynamic polarization curve indicated the Phaleria macrocarpa leaves
extract play role as the anodic type inhibitor.
Keywords : Corrosion inhibition, mild steel, Phaleria macrocarpa, hydrochloric acid.

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Published

2014-03-10

How to Cite

Rahmi, A., -, E., & Alif, A. (2014). EKSTRAK METANOL DARI DAUN MAHKOTA DEWA (Phaleria macrocarpa) SEBAGAI INHIBITOR KOROSI BAJA DALAM ASAM KLORIDA. Jurnal Riset Kimia, 7(2), 116. https://doi.org/10.25077/jrk.v7i2.168

Issue

Vol. 7 No. 2 (2014): March

Section

Articles

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