Prediction of Liquid Molar Volumes by Additive Methods

• Yonezawa Setsuko

  Department of Chemical Engineering, Graduate School of Engineering, Kyushu University

• Kobuchi Shigetoshi

  Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering, Yamaguchi University

• Fukuchi Kenji

  Department of Chemical and Biological Engineering, Ube National College of Technology

• Arai Yasuhiko

  Department of Chemical Engineering, Graduate School of Engineering, Kyushu University

Abstract

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 = (v_b – v₂₅)/(t_b – t₂₅). The molar volumes at 25°C, v₂₅, and at the normal boiling point, v_b, 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.

Journal

• JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

  JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 38 (11), 870-872, 2005

  The Society of Chemical Engineers, Japan

Keywords

• Liquid Molar Volume
• Prediction
• Additive Method
• Alcohol
• Hydrocarbon

Details

• CRID: 1390001204568339200
• NII Article ID: 130000019420
• NII Book ID: AA00709658
• DOI: 10.1252/jcej.38.870
• ISSN: 18811299
• ISSN: 00219592
• NDL BIB ID: 7716693
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7716693
• Web Site: http://www.jstage.jst.go.jp/article/jcej/38/11/38_11_870/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed