INVESTIGATIONS OF THE SURFACE LAYER OF LIQUID SYSTEMS. VII. SURFACE DEMIXING AND VOLUME PROPERTIES OF SOLUTIONS OF BINARY SYSTEMS

Abstract

An analysis is presented of the possible relationships between the regions of volume and surface demixing in the coordinates: temperature- concentration. Surface demixing is shown to be thermodynamically inevitable. The surface tension and foam stability in the system nitrobenzene-n-hexane has been studied polythermally. The results indicate the existence of surface demixing in this system. Polythermal measurements of the dielectric constant have been carried out on the same system, and also on solutions of cyclohexane in aniline. Two solutions were studied dilatometrically: 20 mol-% cyclohexane + 80% aniline, and 20 mol-% methanol + 80% mesitylene. The polytherms of the volume properties studied do not show any anomalies at temperature corresponding to surface demixing.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1955
Accession Number
AD0679253

Entities

People

  • B. Ya. Teitelbaum
  • O. A. Osipov

Organizations

  • United States Army Biological Warfare Laboratories

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Accuracy
  • Alkanes
  • Aqueous Solutions
  • Coefficients
  • Cyclic Hydrocarbons
  • Cyclohexanes
  • Dielectric Permittivity
  • Dipole Moments
  • Frequency
  • High Temperature
  • Hydrocarbons
  • Liquids
  • Measurement
  • Russian Language
  • Surface Tension
  • Temperature Coefficients

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