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  • Chem Sci Trans., 2012, 1(3),  pp 618-623  

    DOI:10.7598/cst2012.261

    Research Article

    Effect of Temperature on the Corrosion Inhibition of 3-Phosphonopropionic Acid on Mild Steel in Groundwater

  • V. MANIVANNAN* and N. CHITHRALEKHAa
  • Department of Chemistry, Paavai College of Engineering, Namakkal-637 018, Tamilnadu, India
    aaDepartment of Physics, Mahendra College of Engineering, Salem-637106, Tamilnadu, India
  • Abstract

    The inhibition and the effect of temperature and concentration of 3-phosphonopropionic acid (3-PPA) on the corrosion of mild steel in groundwater was investigated by weight loss and potentiodynamic polarization experiments at temperatures ranging from 30 to 60 oC. The studied inhibitor concentrations were between 6 ppm to 18 ppm. The percentage inhibition increased with the increase of the concentration of the inhibitor. The percentage inhibition reached about 66.2% at the concentration of 12 ppm at 30 oC. On the other hand the percentage inhibition decreased with the increase of temperature.

    Keywords

    Corrosion, Inhibitor, 3- Phosphonopropionic acid, Polarization measurements

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