Corrosion inhibition of mild steel in 1MH2SO4 by thiadiazole Schiff bases

Abstract Two novel Schiff bases derived from heterocyclic amines and aldehydes were synthesized and evaluated as corrosion inhibitors for mild steel in 1MH 2 SO 4 by mass loss and electrochemical techniques. Inorder to understand the mechanism of inhibition, adsorption isotherms were tested. The studies showed that the inhibition efficiency depends on concentration of inhibitor and temperature of measurements. Electrochemical studies showed that the inhibitors behave as mixed type. Quantum chemical studies were used to substantiate the experimental results.

[1]  R. Meenakshi,et al.  DIMETHYLAMINOBENZYLIDENE ACETONE AS CORROSION INHIBITOR FOR MILD STEEL IN ACID MEDIUM , 2011 .

[2]  E. A. Noor.  Potential of aqueous extract of Hibiscus sabdariffa leaves for inhibiting the corrosion of aluminum in alkaline solutions , 2009 .

[3]  T. Pavagadhi,et al.  Corrosion inhibition study of a new synthetic Schiff base derived from nontraditional oils on mild steel in 1N HCl solution , 2010 .

[4]  R. Upadhyay,et al.  Effect of Schiff's Bases as Corrosion Inhibitors on Mild Steel in Sulphuric Acid , 2007 .

[5]  R. Rajalakshmi,et al.  Dodonaea viscosa (L.) Leaves extract as acid Corrosion inhibitor for mild Steel - A Green approach , 2013 .

[6]  A. Singh,et al.  Study of Some Bidentate Schiff Bases of Isatin as Corrosion Inhibitors for Mild Steel in Hydrochloric Acid Solution , 2012 .

[7]  D. Kumar,et al.  Molecular structure, vibrational spectroscopic and HOMO, LUMO studies of S-2-picolyl-β-N-(2-acetylpyrrole) dithiocarbazate Schiff base by Quantum Chemical investigations , 2013 .

[8]  H. Eshghi,et al.  Electrochemical and quantum chemical assessment of two organic compounds from pyridine derivatives as corrosion inhibitors for mild steel in HCl solution under stagnant condition and hydrodynamic flow , 2014 .

[9]  F. Bentiss,et al.  Thermodynamic characterization of metal dissolution and inhibitor adsorption processes in mild steel/2,5-bis(n-thienyl)-1,3,4-thiadiazoles/hydrochloric acid system , 2005 .

[10]  M. A. Hegazy,et al.  Novel cationic gemini surfactants as corrosion inhibitors for carbon steel pipelines , 2010 .

[11]  M. A. Hegazy,et al.  A novel Schiff base-based cationic gemini surfactants: Synthesis and effect on corrosion inhibition of carbon steel in hydrochloric acid solution , 2009 .

[12]  Berrin Duran,et al.  Schiff bases as corrosion inhibitor for aluminium in HCl solution , 2012 .