Effect of pH on Nitrite Depletion Reaction

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  • Shibukawa Takumi
    Division of Applied Sciences, Graduate School of Engineering, Muroran Institute of Technology
  • Ohira Yuichi
    Division of Applied Sciences, Graduate School of Engineering, Muroran Institute of Technology
  • Shimadzu Masamitsu
    Division of Applied Sciences, Graduate School of Engineering, Muroran Institute of Technology
  • Obata Eiji
    Division of Applied Sciences, Graduate School of Engineering, Muroran Institute of Technology

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  • 亜硝酸の分解反応におよぼすｐＨの影響
  • アショウサン ノ ブンカイ ハンノウ ニ オヨボス pH ノ エイキョウ

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The effect of pH of a nitrite solution on the depletion rate of nitrous acid was experimentally investigated. The depletion reaction of nitrous acid proceeded when the initial pH of a nitrite solution was less than 4.6. When the nitrous acid concentration was greater than 10−3 mol·l−1, the ratio of nitrite consumption to nitrate production was approximately 3. However, when the nitrous acid concentration was smaller than 10−3 mol·l−1, the ratio of the nitrate production to nitrite depletion became greater than 3 due to desorption of N2O4.

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