Prediction of liquid molar volumes by additive methods

Setsuko Yonezawa, Shigetoshi Kobuchi, Kenji Fukuchi, Yasuhiko Arai

研究成果: Contribution to journalArticle査読

3 被引用数 (Scopus)

抄録

Liquid molar volumes of typical alcohols and hydrocarbons measured previously under atmospheric pressure at 20-70°C are complied and tabulated. An additive method by Elbro et al. was adopted to predict these liquid molar volumes. The method is found to be useful. However, it cannot be adopted to several substances because additive factors required are not available. In this study, a simple predictive method is proposed by using the expansion coefficient, β = (vb - v25)/(tb - t25). The molar volumes at 25°C, v25, and at the normal boiling point, vb, were predicted by the additive methods of Fedors and Le Bas, respectively. Liquid molar volumes at the temperature t can be predicted by v25 + β(t - 25). The present approach is found to be successful except for small molecules, such as methanol and ethanol.

本文言語英語
ページ(範囲)870-872
ページ数3
ジャーナルJOURNAL OF CHEMICAL ENGINEERING OF JAPAN
38
11
DOI
出版ステータス出版済み - 11 20 2005

All Science Journal Classification (ASJC) codes

  • 化学 (全般)
  • 化学工学(全般)

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