International Science Community Association Research Journal of Chemical Sciences 2231-606X 11 3 2021 10 18 Green corrosion inhibitors for copper in NaOH, NaCl and Sea Water-A Review 46 50 EN . Anupama 1 Dept. in Chemistry, Govt. Girls College, Jhunjhunu, Rajasthan, India Kumawat Pooja 2 Dept. in Chemistry, Govt. PG College Jhunjhunu, Rajasthan, India Sharma Kanika 1 Department of Chemistry, University of Rajasthan, Jaipur-302004, India Saxena Sanjiv 2 Department of Chemistry, University of Rajasthan, Jaipur-302004, India Jain Asha 3 Department of Chemistry, University of Rajasthan, Jaipur-302004, India NTALANI Hermeline 1 Plant and Life Chemistry Unit, Faculty of Sciences and Technics, University Marien NGOUABI, BP 69, Brazzaville, Congo and Institute for Research in Exact and Natural Sciences, BP 2400, Brazzaville, Congo NGOUANOU Ravelle Duclérine 2 Plant and Life Chemistry Unit, Faculty of Sciences and Technics, University Marien NGOUABI, BP 69, Brazzaville, Congo MAKOMO Hubert 3 Plant and Life Chemistry Unit, Faculty of Sciences and Technics, University Marien NGOUABI, BP 69, Brazzaville, Congo LOUMOUAMOU Aubin Nestor 4 Multidisciplinary Research Team in Food and Nutrition, Faculty of Sci. and Technics, University Marien NGOUABI, BP 69, Brazzaville, Congo and Institute for Research in Exact and Natural Sciences, BP 2400, Brazzaville, Congo MOULOUNGUI Zéphirin 5 Dina – BioRes# - Chem www.dinabiores.com 10 rue Simone Henry 31200 Toulouse, France OUAMBA Jean-Maurille 6 Plant and Life Chemistry Unit, Faculty of Sciences and Technics, University Marien NGOUABI, BP 69, Brazzaville, Congo J.P. Alimi 1 Nigerian Stored Products Research Institute, P.M.B. 5044, Onireke, Oyo State, Nigeria S.A. Ahemen 2 Akperan Orshi Polytechnic, Yandev, P.M.B. 181, Gboko, Benue State, Nigeria A.I. Ikeme 3 Food Science and Technology Department, P.M.B. 01129, University of Nigeria, Nsukka, Nigeria P.O. Iluebbey 4 International Institute of Tropical Agriculture, P.M.B. 5320. Ibadan, Oyo State, Nigeria Alimi 5 Microbiology Department, P.M.B. 1, University of Ibadan, Oyo State, Nigeria J.O. 6 Mitra Sanchita 1 Department of Biotechnology, Manav Rachna International Institute of Research and Studies, Faridabad, Haryana India and Department of Chemistry, Gargi, College New Delhi, India . Yuktika 2 Department of Chemistry, Gargi College New Delhi, India Chapadgaonkar Shilpa S. 3 Department of Biotechnology, Manav Rachna International Institute of Research and Studies, Faridabad, Haryana India Kumar Ajay 1 Analytical Sciences, T&I, SABIC Research & Technology Pvt. Ltd, Plot No. 81 to 85, Chikkadunnasandra, Sarjapura - Attibele State Highway, Bengaluru, Karnataka-562125, India Malvi Bharmana 2 Olefins Platform, SABIC Research & Technology Pvt. Ltd, Plot No. 81 to 85, Chikkadunnasandra, Sarjapura - Attibele State Highway, Bengaluru, Karnataka-562125, India Vashi Rajendra T. 1 Chemistry Department, Navyug Science College, Rander Road, Surat, India > Review Paper 2021 6 22 2021 10 18 Corrosion like environmental pollution is inevitable and is a serious problem for most of the industries in rapidly developing tropical countries like India. It is a constant and continuous problem. Plant extract has been used as green inhibitors to prevent the metals and alloys against corrosion as they are non-toxic, biodegradable and readily available and eco-friendly. Adsorptions of ingredients of plant extract on metal surface obey various adsorption isotherms. Corrosion inhibition study of copper was carried out by weight loss method with various time and temperatures. Electrochemical methods such as Potentiodynamic polarization (PP) and Electrochemical Impedance Spectra (EIS) were also employed. To study the nature of surface films was done by using various techniques such as, FT-IR and Ultra Violet Visible Spectroscopy, Energy Dispersive X-ray Spectroscopy (EDX), Scanning Electron Microscope (SEM) and Electrochemical Frequency Modulation (EFM). Other methods like High Performance Liquid Chromatography (HPLC), Electric Noise (EN) analysis, EMP, quantum chemical computations techniques were also used. The results obtained from weight loss data and by electrochemical techniques were in good agreement with each other. The present review paper covers the research works done by various researchers on corrosion inhibition of copper in NaOH, NaCl and Sea water media using a plant extract as green inhibitors. Copyright@ International Science Community Association