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Abstract
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Article Information:
Corrosion Inhibition of Mild Steel by Various Plant Extracts in Acid Media
Osita Obiukwu, Ignatius Opara and Lawan U. Grema
Corresponding Author: Osita Obiukwu
Submitted: March 7, 2015
Accepted: April 2, 2015
Published: August 05, 2015 |
Abstract:
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The aim of this study is to investigate the corrosion inhibition of some plant extracts on mild steel in selected media. The plant extracts investigated are Okazi leaf (Gnetum africanum), Utazi leaf (Gongronema latifolium) and Elizabeth leaf (Chromolena odaratum). The selected media are 1M HCL and H2SO4 and the corrosion rate on the mild steel was investigated using mass loss method. Results were obtained at intervals of 24, 48, 72 and 96 h, respectively. The corrosion rate and inhibition efficiency were calculated. The results revealed that Elizabeth leaf (Chromolena odaratum) has the best inhibition efficiency on mild steel followed by Okazi leaf (Gnetum africanum) and Utazi leaf (Gongronema latifolium) which also showed good inhibition efficiency.
Key words: Acid media, corrosion inhibition, elizabeth leaf (Chromolena odaratum), mild steel, okazi leaf (Gnetum africanum), utazi leaf (Gongronema latifolium), weight loss,
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Cite this Reference:
Osita Obiukwu, Ignatius Opara and Lawan U. Grema, . Corrosion Inhibition of Mild Steel by Various Plant Extracts in Acid Media. Research Journal of Applied Sciences, Engineering and Technology, (10): 1197-1205.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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