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      https://www.ias.ac.in/article/fulltext/boms/034/03/0571-0576

    • Keywords

       

      Acetyl coumarines; adsorption isotherm; corrosion inhibition; impedance; zinc.

    • Abstract

       

      The corrosion inhibition characteristics of acetyl coumarine (AC), bromo acetyl coumarine (BAC) and thiazole derivatives (BTMQ and BTCQ) on the corrosion of zinc in 0.1 M HCl solution were investigated by weight loss, potentiodynamic polarization and impedance techniques. The inhibition efficiency increased with increase in inhibitor concentration upto 5 × 10-4 M, then gave almost same inhibition efficiency. The polarizationmeasurements indicated the mixed nature of inhibitors. The adsorption of compounds obeyed Langmuir’s adsorption isotherm. The thermodynamic functions for adsorption processes were evaluated.

    • Author Affiliations

       

      A V Shanbhag1 T V Venkatesha2 R A Prabhu3 B M Praveen2

      1. Department of Chemistry, S.D.M. College, Honavar 581 334, India
      2. Department of P.G. Studies and Research in Chemistry, Kuvempu University, Shankarghatta 577 451, India
      3. Department of Chemistry, M.G.C. College, Siddapur 581 355, India
    • Dates

       
  • Bulletin of Materials Science | News

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      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
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      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

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      Posted on July 25, 2019

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