Study on Acceleration of Oxidation of Hydrogensulfite Ion by Dissolved Oxygen in Aqueous Solution Under Freezing Process.

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  • 凍結過程に促進される水溶液中の溶存酸素による亜硫酸水素イオンの酸化反応の研究
  • トウケツ カテイ ニ ソクシン サレル スイヨウエキ チュウ ノ ヨウゾン サンソ ニ ヨル アリュウサン スイソ イオン ノ サンカ ハンノウ ノ ケンキュウ

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Abstract

Reaction of hydrogensulfite ion (HSO3-) by the dissolved oxygen (O2) in aqueous solution was remarkably enhanced under the freezing process, in which hydrogensulfite ion was changed to sulfuric ion (SO42-). When the concentration of hydrogensulfite ion was fixed at 2.0×10-4moldm-3, the time profile of pH value was reduced 6.0 to 4.5 under the freezing process, in which the change of acidity was accelerated to the later stage in freezing.

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