Calcium D-Pantothenate as Green Corrosion Inhibitor on Mild Steel in 240 ppm NaCl Solution
Rajajeyaganthan Ramanathan1, Albin Aloysius2, Auxilia Christy3, Noreen Anthony4, Gangadhara Angajala5
1Rajajeyaganthan Ramanathan, Department of Chemistry, Kalasalingam Academy of Research and Education, Kalasalingam University, Krishnankoil (Tamil Nadu), India.
2Albin Aloysius, Department of Chemistry, BWDA Arts & Science College, Kolliyangunam (Tamil Nadu), India.
3Auxilia Christy, Department of Chemistry, BWDA Arts & Science College, Kolliyangunam (Tamil Nadu), India.
4Noreen Anthony, Department of Chemistry, Holy Cross College, Tiruchirappalli (Tamil Nadu), India.
5Gangadhara Angajala, Department of Chemistry, Kalasalingam Academy of Research and Education, Kalasalingam University, Krishnankoil (Tamil Nadu), India.
Manuscript received on 04 December 2019 | Revised Manuscript received on 16 December 2019 | Manuscript Published on 30 December 2019 | PP: 435-442 | Volume-9 Issue-2S2 December 2019 | Retrieval Number: B11811292S219/2019©BEIESP | DOI: 10.35940/ijitee.B1181.1292S219
Open Access | Editorial and Publishing Policies | Cite | Mendeley | Indexing and Abstracting
© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open-access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Corrosion inhibition of mild steel in 240 ppm NaCl solution using Calcium D-Pantothenate (Vitamin B5 ) as corrosion inhibitor is studied using electrochemical impedance, potentiodynamic polarization and weight loss studies. From the potentiodynamic polarization studies, icorr (corrosion current density) decreases with increasing the concentration of vitamin B5 (VB5 ). The CR (corrosion rate) decreases and the IE (inhibition efficiency) of VB5 increases on increasing the concentration of VB5 .Surface investigation using SEM, EDX spectra, UV-Vis, FTIR, electrochemical impedance, potentiodynamic polarization and adsorption isotherm parameter of VB5 in 240 ppm NaCl solution shows that VB5 can act asworthy corrosion inhibitors. Quantum chemical data obtained from density functional theory (DFT) calculations also agreed with the experimental outcomes.
Keywords: Pantothenic Acid, Electrochemical Impedance Spectroscopy, Vitamin B5, Mild Steel, Potentiodynamic Polarization.
Scope of the Article: Green Computing