Studies on Thermal Stability, Shelf Life and Electrochemical Measurement of Methanol Extract of Air Dried Alchornea Laxiflora Leaves in Corrosion Prevention
American Journal of Materials Synthesis and Processing
Volume 4, Issue 2, December 2019, Pages: 68-74
Received: Jul. 25, 2019;
Accepted: Sep. 5, 2019;
Published: Nov. 22, 2019
Views 499 Downloads 80
Oluwafemi Lawrence Adebayo, Department of Chemical and Process Engineering, University of Strathclyde, Glasgow, United Kingdom; Department of Chemistry, College of Education, Ikere, Nigeria
Emmanuel Folorunso Olasehinde, Department of Physical and Chemical Sciences, Elizade University, Ilara Mokin, Nigeria; Department of Chemistry, Federal University of Technology, Akure, Nigeria
Labunmi Lajide, Department of Chemistry, Federal University of Technology, Akure, Nigeria
Daniel Oloruntoba, Department of Metallurgical and Materials Engineering, Federal University of Technology, Akure, Nigeria
Morenike Grace Ajayi , Department of Chemistry, College of Education, Ikere, Nigeria
The aim of this study was to determine the thermal stability and shelf life of the extract together with the influence of extract concentration, temperature and pH variation of the acidic medium on the inhibition efficiency using 1.0 M Sodium hydroxide. The dried plant samples were ground, sieved using 0.25µm and then extracted with methanol using maceration method. The phytochemical constituents were analyzed using appropriate methods. The phytochemicals detected were: Alkaloid, saponin, flavnoid, tannin, terpenoid, steroid and cardiac glycoside. Weight loss experiment was performed to ascertain the stability and shelf life of the extract at different storage temperature and time respectively while polarization experiment was used to study the behaviour of the extract on mild steel corrosion at varying concentration of the extract, pH and temperature of the acidic media. It was found that the stability of the extract inhibition efficiency was affected by the mode of storage and the inhibition efficiency decreases with increase in storage temperature of the extract. The life span of the extract was found to be 60 days from its production stage, after this, there was reduction in the inhibition efficiency of the extract. Moreso, the corrosion rate of the mild steel in 1.0 M HCl, monitored by electrochemical measurement revealed that the corrosion rate decreases with increase in the pH, decrease in temperature and increase in concentration of the extract in the acidic solution.
Oluwafemi Lawrence Adebayo,
Emmanuel Folorunso Olasehinde,
Morenike Grace Ajayi ,
Studies on Thermal Stability, Shelf Life and Electrochemical Measurement of Methanol Extract of Air Dried Alchornea Laxiflora Leaves in Corrosion Prevention, American Journal of Materials Synthesis and Processing.
Vol. 4, No. 2,
2019, pp. 68-74.
H. K. Gerhardus, P. H. MichielBrongers and G. Neil Thompsom, Corrosion Costs and Preventive Strategies in the United States” NACE International Publication No. FHWA-RD-01-156 Technologies Laboratories, Inc., Dublin, Ohio.
M. Benabdellah, M. Benkaddour, B. Hammouti, M. Bendahhouand A. Aouniti, Appl. Surf. Sci., 2006, 252, 6212–6217.
P. B. Raja, M. G. Sethuraman, Mater. Lett. 2008, 62, 113–116.
L. Wang, J. Pu, H. Luo. Corros. Sci. 2003, 45, 677–683.
A. Y. EL-Etre. Corros. Sci., 1998, 40, 1845–1850.
I. Radojcic, K. Berkovic, S. Kovac, J. Vorkapic-Furac. Corros. Sci., 2008, 50, 1498–1504.
Z. Ahmad, Principles of Corrosion Engineering and Corrosion Control1st Edition Butterworth-Heinemann, 2006, eBook ISBN: 9780080480336, Paperback BN: 9780750659246, 672.
P. R. Roberge. Handbook of Corrosion Engineering, McGraw-Hill, New York, 2000.
S. A. Ali, H. A. Al-Muallem, S. U. Rahman, M. T. Saeed. Corros. Sci., 2008, 50, 3070–377.
B. Mernari, H. El Attari, M. Traisnel, F. Bentiss, M. Lagrenee. Corros. Sci., 1998, 40, 391–399.
M. El Achouri, S. Kertit, H. M. Gouttaya, B. Nciri, Y. Bensouda, L. Perez, M. R. Infante, K. ElKacemi, Prog. Org. Coat. 2001, 43, 267–273.
S. A. Abd El Maksoud, Corros. Sci., 2002, 44, 803–813.
M. Abdallah, Corros. Sci. 2002, 44, 717–728.
K. F. Khaled, Electrochim. Acta. 2003, 48, 2493–2503.
M. Behpour, S. M. Ghoreishi, N. Soltani, M. Salavati-Niasari, Corros. Sci. 2009, 51, 1073–1082.
G. Kardas, R. Solmaz, Corros. Rev. 2006, 24, 151–171.
R. Solmaz, G. Kardas, B. Yazici, M. Erbil, Prot. Met. 2007, 5, 476–482.
R. Solmaz, G. Kardas, B. Yazıcı, M. Erbil, Prot. Met. 2005, 41, 581–585.
H. Keles, M. Keles，I. Dehri, O. Serindag, Osman Serindag, Colloid Surf. A. 2008, 320, 138–145.
I. B. Obot, N. O. Obi-Egbedi, S. A. Umoren, Int. J. Electrochem. Sci. 2009, 4, 863.
S. Kertit, B. Hammouti, Appl. Surf. Sci. 1996, 93, 59–66.
O. K. Abiola, Corros. Sci. 2006, 48, 3078–3090.
J. O. M. Bockris, A. K. N. Reddy, Modern Electrochemistry, Plenum Publishing Corporation, New York, 1976, 2.
T. A. Soylev, M. G. Richardson, Constr. Build. Mater. 2008, 22, 609-622.
R. Solmaza, E. Altunbas, G. zaKardas, Materials Chemistry and Physics, 2011, 125, 796–801.
A. R. Afidah, E. Rocca, J. Steinmetz, M. J. Kassim, Corros. Sci. 2008, 50, 1546–1550.
A. Ostovari, S. M. Hoseinieh, M. Peikari, S. R. Shadizadeh, S. J. Hashemi, Corros. Sci. 2009, 51, 1935–1949.
E. F. Olasehinde, J. K. Ogunjobi, O. M. Akinlosotu, S. A. Omogbehin “Investigation of the Inhibitive Properties of Alchornealaxiflora leaves on the Corrosion of Mild Steel in HCl: Thermodynamics and Kinetic Study” Journal of American Science 2015, 11 (1s), 32-39.
U. J. Ahile, J. A. Gbertyo, J. S. Anzene, J. O. Ajegi and E. J. Oche. Evaluation of the Inhibitive Properties and Adsorptive Parameters of Ethanol Leaf Extract of Mucuna Pruriens for the Corrosion Inhibition of Aluminium In 2 M H2SO4, International Journal of Innovative Science, Engineering & Technology, 2014, Vol. 1 Issue 6, August 2014.
Yuli Yetri, Emriadi, Novesar Jamarun, and Gunawarman: Corrosion Inhibition Efficiency of Mild Steel in Hydrocloric Acid by Adding Theobroma Cacao Peel Extract” International Conference on Biological, Chemical and Environmental Sciences (BCES-2014) June 14-15, 2014 Penang (Malaysia).
I. Ahamad, M. A. Quraishi Mebendazole: New and efficient corrosion inhibitor for mild steel in acid medium. Corrosion Science, 2010; 52 (2), 651-656.
S. K Shukla, A. K Singh, I. Ahamad, M. A. Quraishi. A. Streptomycin: A commercially available drug as corrosion inhibitor for mild steel in hydrochloric acid solution. Mater. Lett. 2009; 63 (9-10), 819-822.
Verma C, Quraishi MA, Ebenso EE. Electrochemical Studies of 2-amino-1, 9-dihydro-9- ((2-hydroxyethoxy) methyl)-6H-purin-6-one as Green Corrosion Inhibitor for Mild Steel in 1.0 M hydrochloric Acid Solution. International journal of Eectrochemical Science, 2013; 8 (5), 7401-7413.
Oluwafemi L. Adebayo, Emmanuel F. Olasehinde, Labunmi Lajide and Daniel T. Oloruntoba: Comparative analysis of air dried Alchornealaxiflora leaf extracted with different solvents on corrosion inhibition efficiency of mild steel in acidic media. International Journal of Research in Engineering and Innovation, 2019, 3, 208-216.
B. S. Davi and Rajandran, S. “Influence of garlic extract on the inhibition efficiency of trisodium citrate-Zn2+ system, International Journal of Chemical Science and Technology, 2011, 1, 79-87.
P. C. Okafor, V. I. Osabor and E. E. Ebenso” Eco-friendly corrosion inhibitor: Inhibitive action of ethanol extracts of Garcinia kola for the corrosion of mild steel in H2SO4 solutions, Pigment and Resin Technology, 2007, 35 (5), 299-305.
E. E. Oguzie “ Influence of halid ions on the inhibitive effect of Congo red dye on the corrosion of mild steel in sulphuric acid solution, Material Chemistry and Physics, vol., 2005, 87 (1), 212-217.
J. B. Harborne “Phytochemical Methods: A Guide to Modern Techniques of plant Analysis. Chapman & Hall Ltd, London, (1973), pp 278.
D. E. Okwu” Evaluation of the Chemical Composition of indigenous species and flavouring agents. Global Journal of Pure and Applied Science, 2001, 7 (3), 455-459.
T. N. Rahilla, S. Rukh and A. A. Zaidi Phytochemical Screening of Medicinal Plants belonging to Euphoribiaceae Pak, Veterinary Journal, 1994, 14, 160-2.
A. Sofowara, Medicinal Plants and Traditional Medicine in Africa, Ibadan, Nigeria, Spectrum Book Ltd., 1993, pp. 289.
C. L. Del-Toro-Sánchez, M. Gutiérrez-Lomelí, E. Lugo-Cervantes, et al., “Storage Effect on Phenols and on the Antioxidant Activity of Extracts from Anemopsiscalifornica and Inhibition of Elastase Enzyme,” Journal of Chemistry, 2015, vol. 2015, Article ID 602136, 8 pages.
R. Rajalakshmi and A. S. Safina: Staminate Flower of Cocos Nucifera as Green Inhibitor for Mild Steel in HCl Medium, E- Journal of Chemistry, 2012, 9 (3), 1632-1644.
Xi-lan Jiang, Chuan Lai, Zhen Xiang, Ya-fei Yang, Bang-long Tan, Zhong-qiu Long, Lin- peng Liu, Yun-tianGu, Wen-jian Yang, Xia Chen: Study on the Extract of Raphanus Sativus L as Green Corrosion Inhibitor for Steel in HCl Solution, int. J. Electrochem. Sci., 2018, 133224-3234, doi: 10.20964/2018.04/16.
Li, Q. He, S. Zhang, C. Pei and B. Hou, Some new triazole derivatives as inhibitor for mild steel corrosion in acidic medium, journal of Applied Electrochemistry, 2008, 38 (3), 289-295.
H. Fu, Synergism between red tetrazolium and uracil on the corrosion of cold rolled steel in H2SO4 solution, Corrosion science, 2009, 51 (6), 1344-1355.
E. S. Ferreira, C. Giacomelli, F. C. Giacomelli and A. Spinell, Evaluation of the inhibitor effect of L-ascorbic acid on the corrosion of mild steel. Material Chemistry and Physics, 2004, 83 (1), 129-134.