Browsing by Author "Subhashini S"

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    CORROSION INHIBITION OF MILD STEEL IN ACID SOLUTION BY 3, 4, 5-TRIMETHOXYPHENYL-2-IMIDAZOLINES
    (Hindawi Publishing Corporation, Journal of Chemistry, 2011) Nalini D; Rajalakshmi R; Subhashini S
    A heterocyclic imidazoline, 3,4,5-trimethoxyphenyl-2-imidazolines (TMP2I) was tested for its corrosion inhibition in 0.5 M H2SO4 and 1 M HCl using weight loss, Tafelpolarisation and electrochemical impedance techniques. The results show that the inhibition efficiency increases with the increase in concentration of TMP2I and the higher efficiency of about 98% is obtained in both the acid media at 20 ppm. The adsorption of TMP2I obeys Langmuir adsorption isotherm and occurs spontaneously. Cathodic and anodic polarization curves of mild steel in the presence of different concentrations of TMP2I at 30 0C reveal that it is a mixed type of inhibitor. Electrochemical impedance studies reveal that the system follows mixed mode of inhibition. The surface morphology of the mild steel specimens was evaluated using SEM images
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    EFFECTS OF ALCOHOLISM ON NUTRITION AND RECOVERY USING NUTRITION MANAGEMENT IN ROMA TOWNSHIP- LUSAKA
    (Eureka Journals, 2023) Sakthivel R; Subhashini S
    Alcohol is a product that has provided a variety of functions for people throughout all history. From the ancient times to the modern world, alcohol has played ansignificantrole in religion and worship. In the past, alcoholic beverages have been provided as sources of requirednutrients and have been widely utilizedas for their medicinal, antiseptic and analgesic properties. The aim and objective of this project was to look at nutritional problems created by consumption of alcoholic beverages, to look at the effect of alcohol on vitamins and to show how ones genes will affect their response to alcohol. This research was conducted in Serenity Harm Reduction Program Zambia (SHARPZ).
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    ORTHO-CHLOROPHENYL-2-IMIDAZOLINE AS CORROSION INHIBITOR FOR MILD STEEL IN ACIDIC MEDIA
    (Asian Publication Corporation, Asian Journal of Chemistry, 2011-01-01) Nalini D; Rajalakshmi R; Subhashini S
    Present study involved the synthesis of o-chlorophenyl-2-imidazoline (OCP2I) and its inhibition behaviour on mild steel corrosion in sulphuric acid and hydrochloric acid media, using weight loss method and electrochemical methods. The results of weight loss method revealed that the inhibitor shows a maximum efficiency of 84.55% in H2SO4 at 200 ppm and 91.42% in HCl medium at 120 ppm of concentration. Thermodynamic parameters indicated physisorption mode of adsorption of o-chlorophenyl-2-imidazoline follows Langmuir and Temkin adsorption isotherms. Potentiodynamic polarization and impedance studies were conducted to investigate the mechanism of the inhibition and the present system follows mixed mode of inhibition.