International Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE)

Monthly Journal for Mechanical and Civil Engineering

Volume2,November 2017,

Topic : Comparative studies of Corrosion Inhibitive Properties of Benzofuran-2-carboxylic acid & Amla Leaves Extract On Mild Steel in Acid Media

Authors:Abhishek Kumar || Ankit Aggarwal, Ashutosh Krishna Piyush, Abhishek Kumar, Aatiq ShafiqDar, Angel Roy, Dr Hari Krishna S

Abstract:The effects of Benzofuran-2-carboxylic acid (BF) & Amla (Emblica officinal is) leaves aqueous extract as a corrosion inhibitor, behaviour of mild steel has been investigated in hydrochloric acid solutions containing Experiments were performed by weight loss method for different time intervals and at room temperature. The inhibition efficiency of Benzofuran-2-carboxylic acid was found to increase with inhibitor concentration and also in the presence of sodium bromide and sodium iodide. Inhibition efficiency was found to increase with increasing concentration of inhibitor (0.2 g /l to 10 g/l) for 6 hours at room temperature. The maximum inhibition efficiency of Emblica officinal is leaving 87 % in 1 N Hydrochloric acid. From the comparative studies, it was investigated that the corrosion inhibition efficiency of Emblica officinal is leaves aqueous extract is approximately equal to that of Benzofuran-2-carboxylic acid in hydrochloric acid. This may be due to the presence of wide variety of compounds like tannins, alkaloids and phenols in Emblica officinal is a plant. The adsorption process was found to obey the Langmuir adsorption isotherm..

Keywords: Benzofuran-2-carboxylic acid; sodium bromide; sodium iodide; 1.0M H2S04, Emblica officinalis leaves.

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DOI: 01.1617/vol4/iss11/pid35209


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Editor-in-Chief
Meinhard Taher Schobeiri
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Texas A & M University, USA.

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