29Mar 2017

CORROSION INHIBITION OF MILD STEEL USING ALOE BARBEDENSIS MILLER SKIN EXTRACT IN 0.5 MHCL.

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Mild steel is employed widely in most industries due to its low cost and availability in ease for the fabrication of various reaction vessels such as cooling tower tanks, pipelines etc. It can be subjected to aggressive and unfavorable environmental conditions, making it susceptible to corrosion. From the economic and environmental view, plant extracts area n excellent alternative as inhibitors because of their availability, biodegradability, non toxicity and environmental friendly. The rich source of anthraquinone and other chemical composition of Aloe Vera has been resulted a wide range uses in different sector. The present study deals with the inhibition effect of biodegradable, nontoxicand eco-friendly. Aloe Vera leaf extracton corrosion of mild steel in HCl. The corrosion inhibition of mild steel in the presence of Aloe Barbedensis Miller in 0.5 MHCl was studied by weight loss measurement; electrochemical techniques (Potent iodynamic polarization, A Cimpedance). The maximum efficiency was found to be 81% at 150 ppm. From the result of weight loss studies, the mode of adsorption is found to be physisorption. Kinetic and thermodynamic parameters were calculated and discussed. Potentiodynamic polarization studies indicate that Aloe Barbedensis Miller acts as a mixed type of inhibitor. The surface morphology has been analyzed.

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[Annie Preetha. M and Felicia Rajammal Selvarani. (2017); CORROSION INHIBITION OF MILD STEEL USING ALOE BARBEDENSIS MILLER SKIN EXTRACT IN 0.5 MHCL. Int. J. of Adv. Res. 5 (Mar). 1457-1467] (ISSN 2320-5407). www.journalijar.com

ANNIE PREETHA M

DOI:

Article DOI: 10.21474/IJAR01/3653      
DOI URL: https://dx.doi.org/10.21474/IJAR01/3653

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