Dr. Poongothai N. currently serves as Assistant Professor in Chemistry, Department of Sciences, School of Engineering, Coimbatore Campus. Her areas of research include Corrosion Inhibitors.
Studies on the inhibition efficiency of natural products on corrosion of metals in various environments using different techniques- weight loss methods and electrochemical techniques.
Auguest ’07 till now | Amrita Vishwa Vidyapeetham, Amrita School of Engineering, Ettimadai, Coimbatore, Tamilnadu, India. |
January ’04 - July ’07 | Michael Job Arts and Science College, Sulur, Coimbatore, Tamilnadu, India. |
September ‘01 – June ’02 | Government Polytechnique College, Coimbatore, Tamilnadu, India. |
January ’92 - December '97 | ARC Mat. Hr. School, Somanur, Coimbatore, Tamilnadu, India. |
2003 - 2006 | Ph. D: Vapour Phase corrosion inhibitors (VCI)-Physical Chemistry |
2000 - 2002 | M. Phil: Acid Pickling Inhibitors)-Physical Chemistry |
1986 – 1988 | M.Sc.: Studies on the effect of electrolytes on the critical solution temperature (CST) of Phenol water system. |
1984 - 1985 | B.Sc: Estimation of the amount of vitamin – C (Ascorbic acid)– By quantitative analysis method )-Inorganic Chemistry |
2003 – 2006 | Ph.D in Physical Chemistry from Anna University, Chennai. Doctoral dissertation entitled “Study of Essential Oils as VCI for corrosion of mild steel and copper” under the supervision of Dr. S.C. Murugavel and Dr. T. Ramachandran, Amrita Vishwa Vidyapeetham, Coimbatore, Tamilnadu, India. |
2000- 2001 | M.Phil in Applied Chemistry, from Avinashilingham Deemed University, Coimbatore, Tamilnadu, India. Dissertation work for Master of Philosophy entitled “Beneficial role of acid extracts of Carica papaya (fruit skin) and Nerium oderum (leaves) on corrosion of mild steel in acidic medium - A cost effective approach” under the guidance of Dr. Subashini. |
1986- 1988 | M.Sc in Chemistry from Madras University, Sri Sarada College for Women, Salem, Tamilnadu, India. Dissertation work for Master’s program involved “Studies on the effect of electrolytes and organic acids on the critical solution temperature (CST) of Phenol water system under the guidance of Dr. Laxshmi |
1982-1885 | B. Sc in Chemistry from Bharathidasan University, Trichirappalli. Tamilnadu, India. Dissertation work for Bachelor of Science entitled “Estimation of the amount of vitamin – C (Ascorbic acid) present in germinated Cereals and Pulses” – By quantitative analysis method. |
Year of Publication | Title |
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2014 |
N. Poongothai, Murugavel, S. C., and T. Ramachandran, “Studies on Jasiminum grandiflorumas VCI for mild steel in marine environment”, International Journal of Advance Research, IJOAR, vol. 2, no. 7, 2014. |
2014 |
N. Poongothai, Murugavel, S. C., and T. Ramachandran, “Corrosion Inhibitive Effect of Five Essential Oils on Copper in Seawater, Rainwater, and Industrial Environments”, International Journal of Chemistry and Chemical Engineering, vol. 4, pp. 23-34, 2014. |
2010 |
N. Poongothai, Murugavel, S. C., Natesan, M., and T. Ramachandran, “Essential oils as vapour phase corrosion inhibitors for mild steel in seawater, rainwater, SO2 and H2S environments”, Material Performance Journal, 2010. |
2010 |
N. Poongothai, Ramachanderen, T., Natesan, M., and Murugavel, S. C., “The Performance of VCI Coated Paper for Corrosion Prevention of Copper in HCl Environment”, Asian Journal of Research in Chemistry, vol. 3, pp. 472–476, 2010.[Abstract] The performance of five essential oils has been used to study the corrosion prevention of copper by weight loss and electrochemical polarization methods. Results showed that the inhibition efficiency depends upon the concentration of inhibitors as well as that of acid. The essential oils reduce the corrosion of copper in HCl environment more effectively in 4% concentration. This is due to adsorption of inhibitor molecules on metal surface, which is proved by Tempkin adsorption isotherm. The electrochemical polarization result revealed that inhibitors are of mixed type in nature. More »» |
2010 |
N. Poongothai, Ramachanderen, T., Murugavel, S. C., and Natesan, M., “Essential oils as VCIs for mild steel in various environments”, Materials Performance, vol. 49, pp. 50-55, 2010.[Abstract] The corrosion vapor inhibition efficiency (IE) of five essential oils was investigated for mild steel in seawater, rainwater, sulfur dioxide (SO 2), and hydrogen sulfide (H2S) environments by weight loss and electrochemical methods. The highest IE was observed in all the tests at an inhibitor concentration of4%. The tests also indicated that the five oils act as mixed inhibitors but cathodic inhibition was more predominant. The surface of the specimens was investigated using scanning electron microscopy. More »» |
2009 |
N. Poongothai, Natesan, M., Murugavel, S. C., and T. Ramachandran, “Essential Oils as VCI for mild steel in HCl environment”, Material Performance Journal, pp. 52-57, 2009. |
2009 |
N. Poongothai, Ramachanderen, T., Natesan, M., and Murugavel, S. C., “Corrosion Inhibition of Mild Steek by Essential Oils in an HCl Environment”, Materials Performance, pp. 56-57, 2009. |
2007 |
N. Poongothai, Natesan, M., Palanisamy, N., Murugavel, S. C., and T. Ramachandran, “Azole, amine and nitrite as vapour phase corrosion inhibitors of metals in NaCl & SO2 environment”, Indian Journal of Chemical Technology, vol. 12, pp. 427-431, 2007. |
2007 |
N. Poongothai, Natesan, M., Palanisamy, N., Murugavel, S. C., and T. Ramachandran, “Azole, amine, benzoate and nitrate compound mixture as VPI for metals in NaCl and SO2 environments”, Indian Journal of Chemical Technology, vol. 14, pp. 481–487, 2007.[Abstract] A variety of tests were performed to evaluate the feasibility of vapour phase corrosion inhibitor’s (VPI’s) application for maintenance and protection of transporting metal articles from corrosion damage. Three types of VPI were evaluated for their inhibition characteristics for mild steel (MS) and copper. Minimum dosage of one g/L is required for protections of both metals. Influence of SO₂ and chloride contamination on inhibitor performance was also investigated. The corrosion behaviour of MS and Cu in sodium chloride (0.005 M NaCl) environment in presence of VPI impregnated and unimpregnated paper has been studied by using weight loss, potentiodynamic polarization and A.C impedance spectroscopic methods. It has been found that 1g L⁻¹ of VPI impregnated on Kraft paper provides nearly 98% inhibition efficiency for mild steel and copper in 0.005 M NaCl environment. More »» |
2005 |
N. Poongothai, Rajendran, P., Natesan, M., and Palaniswamy, N., “Wood bark oils as vapour phase corrosion inhibitors for metals in NaCl and SO2 environments”, Indian journal of chemical technology, vol. 12, pp. 641-647, 2005.[Abstract] Wood bark oils of Cassia siamea-gonrai (CS), Cassia auriculata (CA), Crataeva religiosa (CR) and Strychnos nux-vomica (SNV) were extracted from the dry bark. These highly volatile oils are used as a vapour phase corrosion inhibitors (VPI) for mild steel and copper in sodium chloride and sulphur dioxide environments. The inhibition efficiency of these wood bark oils has been examined by using weight loss, potentiodynamic polarization and A.C. impedance spectroscopic methods. It has been found that the inhibition capability of these oils increases with increase in concentration from 0.4 to 4%. The results indicate that the bark oils have significant inhibitive effect. This is due to adsorption of inhibitor molecule on the metal surface. At higher concentration (8%) of the inhibitor, there is decrease in inhibition efficiency. It may be due to the formation of soluble metal-inhibitor complex in the salt environments. It has also been found that 4% concentration of these inhibitors offered, above 90% inhibition efficiency for both mild steel and copper. More »» |