An Improved Model of Second Virial Coefficients for Polar Fluids and Fluid Mixtures

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A corresponding-states model was developed empirically for calculating the second virial coefficients of polar fluids and fluid mixtures. In this model, a "nonpolar" and a "polar" acentric factors characterize size/shape and polarity/association effects, respectively. The new model contains a polarity or an association parameter (<I>α</I><SUB>P</SUB> or <I>α</I><SUB>HB</SUB>), which can be estimated from fluid's reduced dipole moment through a specific generalized correlation. The temperature function of association contribution was found to depend on fluid's reduced dipole moment. This generalized model predicts well the second virial coefficients for a diversity of polar fluids and strongly hydrogen-bonded substances. The new model with a set of recommended <I>k<SUB>ij</SUB></I>'s can reasonably estimate the second virial cross-coefficients.

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  • Journal of chemical engineering of Japan  

    Journal of chemical engineering of Japan 31(4), 518-526, 1998-08 

    The Society of Chemical Engineers, Japan

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各種コード

  • NII論文ID(NAID)
    10002065854
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00219592
  • NDL 記事登録ID
    4541593
  • NDL 雑誌分類
    ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-R395
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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