Apparatus for the measurement of interfacial tension

Details Apparatus for the measurement of interfacial tension Apparatus for the measurement of interfacial tension

1989-03-28

1990-07-24

Williams, Hezron E.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Vapor pressure

G01N 1302

Patent

active

049427601

ABSTRACT:
An apparatus to measure interfacial tension of fluids in equilibrium and, more particularly, a liquid in equilibrium with a gaseous phase thereof using a pendant drop method, at superatmospheric pressure and elevated temeprature conditions. The apparatus includes a visual cell having an interchangeable, multiple capillary injection system, a double-piston pump which permits the drop's injection into the cell without disturbing the experimental conditions, and an optical system comprising a photographic camera, a telemicroscope, and a lighting system.

REFERENCES:
patent: 3483737 (1969-12-01), Jennings, Jr. et al.
patent: 4050822 (1977-09-01), Grat
patent: 4530234 (1985-07-01), Gullick et al.
patent: 4677844 (1987-07-01), Sonoda

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