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  Home > JCE Print > Journal of Chemical Education > Issues > 2001  > March  >
In the Classroom
Computer Bulletin Board
A Low-Cost Dynamic Surface Tension Meter with a LabVIEW Interface and Its Usefulness in Understanding Foam Formation
Pietre Spanoghe, Jan Cocquyt, and Paul Van der Meeren
Department of Applied Analytical and Physical Chemistry, University of Ghent, Coupure links 653, B-9000 Gent, Belgium

Cover
March 2001
Vol. 78 No. 3
p. 338

Abstract
Using standard chemical laboratory equipment, it is possible to construct a low-cost dynamic surface tension meter. The concept of the experiment seemed very appropriate to demonstrate a broad range of dynamic effects on surface tension. Everyday samples such as beer and cola revealed that the dynamic surface tension data are a very useful aid to understanding the foaming characteristics of these liquids. Further experiments into foam formation demonstrated that static surface tension data are useless in explaining such dynamic processes; on the other hand, a very nice correlation between dynamic surface tension and foam volume clearly indicated that the experimental setup presented in this paper is well suited to explaining the phenomena occurring at the surface of liquids during foam formation.
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More Information
*  Citation
Spanoghe, Pietre; Cocquyt, Jan; Van der Meeren, Paul. J. Chem. Educ. 2001 78 338.
*  Keywords
Demonstrations; Graduate Education / Research; Instrumental Methods; Laboratory Computing / Interfacing; Laboratory Equipment / Apparatus; Surface Science
*  History
Created:
Last Updated:
February 6, 2001
August 31, 2005
  Home > JCE Print > Journal of Chemical Education > Issues > 2001  > March  > Page 338


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