期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2015
卷号：4
期号：4
页码：1809
DOI：10.15680/IJIRSET.2015.0404002
出版社：S&S Publications
摘要：The inhibition of mild steel corrosion in sulphuric acid solution was studied with application of Africaparquetina leaves extract (APLE) using Gravimetric, Gasometric and Thermometric measurements. The phytochemicalcharacterization of the leaves extract were also carried out using Gas chromatography mass spectroscopy (GCMS) andFourier transformation Infra Red (FTIR) analysis. The result showed the presence of phytochemical compounds andfunctional groups greatly contributed to the inhibitive strength. The inhibition efficiency at optimum concentration 0.5g/l was 87.78 % and it was increased with the increase in concentration of APLE but decreased with increase intemperature. The adsorption of inhibitor obeyed Langmuir adsorption isotherm and the free energy of adsorptionsuggested that it was physisorption. Finally, the Dubinnin-Radushkevich isotherm model also suggested the techniquesadopted in the corrosion measurement were in good agreement.
