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  Home > JCE Print > Journal of Chemical Education > Issues > 2001  > November  >
In the Classroom
Tested Demonstrations
A Liquid Prism for Refractive Index Studies
Michael D. Edmiston
Department of Chemistry and Physics, Bluffton College, Bluffton, OH 45817
Cover
November 2001
Vol. 78 No. 11
p. 1479
Abstract
A hollow glass prism filled with liquid becomes a "liquid prism". A simple method for constructing hollow glass prisms is presented. A method is given for a demonstration that uses the liquid prism with a laser or laser pointer so the audience can observe differences in refractive index for various liquids. The demonstration provides a quick and easy determination of the sugar content of soft drinks and juices. The prism makes it easy to determine a numerical value for the refractive index of a liquid.
More Information
*  Citation
 Edmiston, Michael D. J. Chem. Educ. 2001 78 1479.
*  Keywords
 Analytical Chemistry; Demonstrations; Laboratory Equipment / Apparatus; Lasers / Laser Spectroscopy; Physical Chemistry; Quantitative Analysis
*  History
 Created:
Last Updated:		 October 8, 2001
April 14, 2005
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