Anodic Behaviors of Iron and Its Oxides in Sulfuric Acid Solutions

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  • 硫酸溶液中における鉄および鉄酸化物の陽極挙動
  • リュウサン ヨウエキ チュウ ニ オケル テツ オヨビ テツ サンカブツ ノ ヨウキョク キョドウ

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Anodic behaviors of pure iron and its oxides in 0.1-36N sulfuric acid solution have been investigated by a potentiostatic method. In the anodic polarization curves of pure iron five current peaks were detected. Although the potentials for these peaks were not affected so large by sulfuric acid concentrations except in the ranges of 12-16N and 28-32N, the current densities at the peaks and in the passive region changed complicatedly. On these anodic phenomena, effects of H+, HSO4-, SO42- and undissociated sulfuric acid were discussed.

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