Dihedral angle of lens and interfacial tension of air/long chain alcohol/water systems

Makoto Aratono, Takayuki Toyomasu, Takeo Shinoda, Norihiro Ikeda, Takanori Takiue

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


The dihedral angle of an alcohol lens at the air/water interface and the three kinds of interfacial tensions of air/1-octanol/water and air/1-decanol/water systems have been measured as a function of temperature from 288.15 to 313.15 K at 2.5 K intervals under atmospheric pressure. In order to measure a dihedral angle, the new experimental apparatus was constructed and the new procedure was adopted. By comparing the dihedral angles measured with those calculated by applying Neumann's relations to the interfacial tension values, it was concluded that the dihedral angle measurement was performed with a satisfactory accuracy. The properties of the interfacial film and also the occurrence of the intruding of water phase on the air/alcohol interface were discussed.

Original languageEnglish
Pages (from-to)2158-2163
Number of pages6
Issue number7
Publication statusPublished - Apr 2 1997

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry


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