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  • Chem Sci Trans., 2018, 7(1),  pp 83-88  

    DOI:10.7598/cst2018.1437

    Research Article

    Study of Anodization of Ti-12 in 0.1M Sodium Bisulphite

  • U. RAGHAVENDER1, E. RAJA SHEKER REDDY2 and A. PANASA REDDY1*
  • 1Department of Chemistry, Govt. Degree & P. G. College, Wanaparthy, Telangana, India
    2Department of Chemistry, University College of Engineering, Osmania University, Hyderabad, Telangana, India
  • Abstract

    Anodization of Ti-12 in 0.1M aqueous sodium bisulphite has been studied under different anodizing parameters. The effect of temperature on the kinetics of film formation was studied at constant current density, 8 mA/cm2 at different temperatures varying from 298 to 338 K. The rate of film formation decreased with increase in temperature. The effect of added anion impurities, carbonate (CO3-2), sulphate (SO4-2), phosphate (PO4-3) and fluoride (F-) in milli molar concentrations has been investigated. It was observed that the rate of anodizing Ti-12 was decreased in the presence of carbonate (CO3-2), sulphate (SO4-2) and fluoride (F-) anion impurities except in phosphate (PO4-3) impurities. It has also been studied the solvent (glycerol) effect of 20%, 40%, 60% and 80% of glycerol volume on anodization of Ti-12 in 0.1M aqueous sodium bisulphite solution at room temperature under galvanostatic conditions. As the percentage of glycerol increases the rate of formation and breakdown voltage increased.

    Keywords

    Anodization, Titanium-12, Rate of formation, Sodium bisulphate, Glycerol

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