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Contact angles; wetting and de-wetting of mercury: Part III. Contact angles on mercury

✍ Scribed by C. A. Smolders

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
991 KB
Volume
80
Category
Article
ISSN
0165-0513

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✦ Synopsis

Abstract

In the system mercury/aqueous Na‐decane sulfonate/hydrogen contact angles are obtained by calculation from the three interfacial tensions, and by direct measurement.

Electrocapillary measurements are described, by which the influence of the surface charge (surface potential) on the adsorption of Nadecane sulfonate at the mercury/solution interface is studied.

Using the sessile drop method, equilibrium surface tension data are obtained for all three interfaces, and for different values of the surface potential of the mercury.

Calculated and measured contact angles are in good agreement over a range of concentrations of Na‐decane sulfonate.

The problem of the thickness of the solution layer at the mercury/gas interface is discussed.

πŸ“œ SIMILAR VOLUMES

Contact angles; wetting and de-wetting o
Contact angles; wetting and de-wetting of mercury: Part I. A critical examination of surface tension measurement by the sessile drop method
✍ C. A. Smolders; E. M. Duyvis πŸ“‚ Article πŸ“… 2010 πŸ› Elsevier Science 🌐 English βš– 704 KB

## Abstract A survey is given of the existing methods for measuring the surface tension from the geometry of sessile drops. These methods, which generally consist of the measurement of simple drop dimensions, are insufficiently accurate for use with adsorption studies. A new procedure is described