Natural products of gum arabic and frankinences as green inhibitors for mild steel corrosion in acidic medium

In terms of environmental impacts and cost considerations, plants source were used as a vital alternative approach to organic inhibitors in combating the risk of corrosion. In this work, the properties of corrosion inhibition in gum arabic and frankinences and their components were experimentally ex...

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Main Author:	Alkhanbashi, Nabahan Hamood Ali
Format:	Thesis
Language:	English
Published:	2019
Subjects:	QD Chemistry
Online Access:	http://eprints.utm.my/id/eprint/102543/1/NabahanHamoodAliAlkhanbashiMFS2019.pdf.pdf
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spelling	my-utm-ep.1025432023-09-03T06:41:11Z Natural products of gum arabic and frankinences as green inhibitors for mild steel corrosion in acidic medium 2019 Alkhanbashi, Nabahan Hamood Ali QD Chemistry In terms of environmental impacts and cost considerations, plants source were used as a vital alternative approach to organic inhibitors in combating the risk of corrosion. In this work, the properties of corrosion inhibition in gum arabic and frankinences and their components were experimentally examined on mild steel in HCl solution using weight loss methods. and potentiodynamic polarizationte technique. Characterization physical technique, namely electron microscopy scanning (SEM) was employed. Two natural product species of same family viz., gum arabic and frankinences, were investigated in terms of their corrosion inhibition efficiencies for mildd steel in 1 M HCl. Inhibition effect of different concentrations of gum arabic and frankinences viz., 2.5, 5, 7.5 and 10 g/L were tested using weight loss method and electrochemical potentiodynamic polarization measurements. Weight loss measurements were conducted for 4 h at 25, 60 and 85°C. The electrochemical potentiodynamic polarization measurements were carried out at 25°C. Overall, the results showed that both the inhibitors inhibited the corrosion of mild steel in acidic media via adsorption process on mild steel. The inhibition efficiencies increased with the increase in concentrations of the extracts and varied at different temperatures and immersion time. The obtained inhibition efficiencies of products were ranging from 46.84 to 81.76% for gum arabic and was between 53.15 and 84.51% in frankincense. The obtained inhibition efficiencies of products from polarization measurements were from 39.5 to 81% for gum arabic and 40.81 to 28.28% for frankincense respectively. Thus, these results showed that the higher the concentration (7.5 g/L and 10 g/L) of the inhibitor the higher the inhibition efficiency. The SEM image clearly showed a smooth and rough surface due to the presence of inhibition on the surface of the mild steel by the natural products. Therefore, potentiodynamic polarization studies were able to shows the inhibition in the presence of both gum arabic and frankincense. 2019 Thesis http://eprints.utm.my/id/eprint/102543/ http://eprints.utm.my/id/eprint/102543/1/NabahanHamoodAliAlkhanbashiMFS2019.pdf.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:146372 masters Universiti Teknologi Malaysia Faculty of Science
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	QD Chemistry
spellingShingle	QD Chemistry Alkhanbashi, Nabahan Hamood Ali Natural products of gum arabic and frankinences as green inhibitors for mild steel corrosion in acidic medium
description	In terms of environmental impacts and cost considerations, plants source were used as a vital alternative approach to organic inhibitors in combating the risk of corrosion. In this work, the properties of corrosion inhibition in gum arabic and frankinences and their components were experimentally examined on mild steel in HCl solution using weight loss methods. and potentiodynamic polarizationte technique. Characterization physical technique, namely electron microscopy scanning (SEM) was employed. Two natural product species of same family viz., gum arabic and frankinences, were investigated in terms of their corrosion inhibition efficiencies for mildd steel in 1 M HCl. Inhibition effect of different concentrations of gum arabic and frankinences viz., 2.5, 5, 7.5 and 10 g/L were tested using weight loss method and electrochemical potentiodynamic polarization measurements. Weight loss measurements were conducted for 4 h at 25, 60 and 85°C. The electrochemical potentiodynamic polarization measurements were carried out at 25°C. Overall, the results showed that both the inhibitors inhibited the corrosion of mild steel in acidic media via adsorption process on mild steel. The inhibition efficiencies increased with the increase in concentrations of the extracts and varied at different temperatures and immersion time. The obtained inhibition efficiencies of products were ranging from 46.84 to 81.76% for gum arabic and was between 53.15 and 84.51% in frankincense. The obtained inhibition efficiencies of products from polarization measurements were from 39.5 to 81% for gum arabic and 40.81 to 28.28% for frankincense respectively. Thus, these results showed that the higher the concentration (7.5 g/L and 10 g/L) of the inhibitor the higher the inhibition efficiency. The SEM image clearly showed a smooth and rough surface due to the presence of inhibition on the surface of the mild steel by the natural products. Therefore, potentiodynamic polarization studies were able to shows the inhibition in the presence of both gum arabic and frankincense.
format	Thesis
qualification_level	Master's degree
author	Alkhanbashi, Nabahan Hamood Ali
author_facet	Alkhanbashi, Nabahan Hamood Ali
author_sort	Alkhanbashi, Nabahan Hamood Ali
title	Natural products of gum arabic and frankinences as green inhibitors for mild steel corrosion in acidic medium
title_short	Natural products of gum arabic and frankinences as green inhibitors for mild steel corrosion in acidic medium
title_full	Natural products of gum arabic and frankinences as green inhibitors for mild steel corrosion in acidic medium
title_fullStr	Natural products of gum arabic and frankinences as green inhibitors for mild steel corrosion in acidic medium
title_full_unstemmed	Natural products of gum arabic and frankinences as green inhibitors for mild steel corrosion in acidic medium
title_sort	natural products of gum arabic and frankinences as green inhibitors for mild steel corrosion in acidic medium
granting_institution	Universiti Teknologi Malaysia
granting_department	Faculty of Science
publishDate	2019
url	http://eprints.utm.my/id/eprint/102543/1/NabahanHamoodAliAlkhanbashiMFS2019.pdf.pdf
_version_	1776100944024436736

Natural products of gum arabic and frankinences as green inhibitors for mild steel corrosion in acidic medium

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