SO^-_3形陽イオン交換体におけるアルカリ金属イオンとのイオン交換に伴う熱力学的諸量の測定  [in Japanese] Measurements of Thermodynamic Quantities for Ion Exchange with Alkali Metal Ions in SO^-_3-Type Cation Exchange Resin  [in Japanese]

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Abstract

-SO<SUP>-</SUP><SUB>3</SUB>基を持つ市販の有機陽イオン交換体につき, 精密熱量計を用いてH<SUP>+</SUP>とアルカリ金属イオンとのイナン交換に伴う熱量を測定した。 また, イオン交換平衡の平衡定数もあわせて測定し, イオン交換に伴うΔ<I>G</I><SUP>0</SUP>, D<I>H</I><SUP>0</SUP>及びΔ<I>S</I><SUP>0</SUP>を算出した.複数回のK<SUP>+</SUP>/H<SUP>+</SUP>交換の熱量測定から1%前後以内の誤差で測定が再現できることが分かった.Δ<I>G</I><SUP>0</SUP>, D<I>H</I><SUP>0</SUP>及びΔ<I>S</I><SUP>0</SUP>に関しては, 過去の測定値と比較して妥当と思われる結果が得られた.

The heat of cation exchange of alkali metal ions with H<SUP>+</SUP> using a commercially available cation exchange resin containing -SO<SUP>-</SUP><SUB>3</SUB> groups was measured with a precision calorimeter. The thermodynamic quantities such as Δ<I>G</I><SUP>0</SUP>,Δ<I>H</I><SUP>0</SUP>andΔ<I>S</I><SUP>0</SUP> for ion exchange were estimated using data of ion exchange equilibrium constants as well as the heat data. Multiple measurements of heat in K<SUP>+</SUP> /H<SUP>+</SUP> exchange revealed that they are reproducible within amargin of 1% error. Values of Δ<I>G</I><SUP>0</SUP>,Δ<I>H</I><SUP>0</SUP>and Δ<I>S</I><SUP>0</SUP> obtained in the present experiment seemed reasonable compared to those in the previous measurements.

Journal

  • Bulletin of the Society of Sea Water Science, Japan

    Bulletin of the Society of Sea Water Science, Japan 53(6), 466-470, 1999-12-01

    The Society of Sea Water Science, Japan

References:  6

Codes

  • NII Article ID (NAID)
    10008283922
  • NII NACSIS-CAT ID (NCID)
    AN0018645X
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    03694550
  • NDL Article ID
    4928305
  • NDL Source Classification
    ZM44(科学技術--地球科学--海洋・陸水・火山) // ZP8(科学技術--化学・化学工業--無機化学・無機化学工業)
  • NDL Call No.
    Z15-47
  • Data Source
    CJP  NDL  J-STAGE 
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