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INVESTIGATION OF RUBBER LATEX, GARCINIA KOLA AND COLA NITIDA EXTRACT AS CORROSION INHIBITORS FOR MILD STEEL IN HYDROCHLORIC ACID

Authors: *Ameh S.E

ABSTRACT

Synthetic corrosion inhibitors that are used in the process industries are not only very expensive but highly toxic. The present work studied extract from latex rubber tree, garcinia kola and cola nitida nuts as inhibitors with varying concentrations in combating corrosion of mild steel in one mole of hydrochloric acid solution at room temperature. Weight loss technique was used in determining samples rate of corrosion in the absence and presence of the different plant extracts. The results obtained indicated that the plant extracts exhibited good inhibitive properties. It was found that efficiencies of corrosion inhibition increased with increasing inhibitor concentration. However, the gum extract proved to be the most effective inhibitor for corrosion control, followed by garcinia kola and cola nitida at 5 hours latency period . The research has demonstrated that the plant extracts have good inhibitive property and could replace the widely used synthetic inhibitors in the process industries.


Affiliations: Department of Mechanical Engineering, Faculty of Engineering, University of Benin, Benin City, Nigeria
Keywords: Corrosion, Cola Nitida, Garcinia Kola, Inhibitor, Plant Extract, Rubber Gum
Published date: 2017/12/29

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ISSN: 2635-3342 (Print)

ISSN: 2635-3350 (Online)

DOI: In progress

ISI Impact Factor: In progress

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Chemical Engineering Department, Faculty of Engineering, University of Benin, PMB 1154, Ugbowo, Benin City, Edo State, Nigeria.