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    • 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

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

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