Measurement of the variation of interfacial tension with temperature between immiscible liquids of equal density
Abstract
An experimental arrangement and a procedure are described for measuring the interfacial tension of two immiscible liquids of equal density as a function of temperature. The method employs the resultant gravity force acting on a circular cylindrical solid of greater density than the liquids; the weight-piece is attached to a vertical axially symmetric liquid bridge. The method is demonstrated for aqueous ethanol and paraffin, and results of measurements are presented.
- Publication:
-
Stockholm International Astronautical Federation Congress
- Pub Date:
- October 1985
- Bibcode:
- 1985stoc.iafcR....P
- Keywords:
-
- Interfacial Tension;
- Liquid-Liquid Interfaces;
- Microgravity Applications;
- Solubility;
- Temperature Dependence;
- Circular Cylinders;
- Density (Mass/Volume);
- Ethyl Alcohol;
- Fluid Dynamics;
- Gravitational Effects;
- Marangoni Convection;
- Paraffins;
- Space Commercialization;
- Fluid Mechanics and Heat Transfer