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：2013
卷号：2
期号：12
页码：7982
出版社：S&S Publications
摘要：Azadirachta indica (Neem) is one of the most versatile medicinal plants having wide spectrum of biologicalactivity. The Azadirachta indica fruit is rich nimbin, nimbinin, nimbidin, metiantriol (triterpenoid), azadirone,epoxyazadiradione etc. The inhibitory efficacy of ethanolic extract of Azadirachta indica fruit (EEAiF) has beeninvestigated at room as well as elevated temperatures and the IE % has been observed significantly high (92.37 %) atroom temperature at concentration 1.052g/L. The experimentations has been carried out on acid corrosion ofAluminium using weight loss measurement. The high inhibitive effect is attributed due to these photochemical presentin the extract. Efficiency of the inhibitor increases with the increasing concentration of inhibitor. The thermodynamicparameters for Azadirachta indica fruit extract indicate that the process was spontaneous and the active constituentshave been physically adsorbed onto the metal surface. The adsorptive behavior of the inhibitor at room and highertemperatures has been further endorsed by carrying out FT-IR spectroscopy.
关键词：Aluminium; Azadirachta indica; Acid corrosion; FT-IR Spectroscopy; Kinetic and Thermodynamic;Parameters
