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| Home > JCE Print > Journal of Chemical Education > Issues >
1999
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October
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Chemistry Everyday for Everyone
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Secondary School Chemistry
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Experiments with Zeolites at the Secondary-School Level: Experience from The Netherlands
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Eric N. Coker and Pamela J. Davis
Laboratory of Organic Chemistry and Catalysis, Faculty of Chemical Technology and Materials Science, Delft University of Technology, Julianalaan 136, NL-2628 BL Delft, The Netherlands
Aonne Kerkstra
Interconfessioneel Westland College, PO Box 114, NL-2670 Naaldwijk, The Netherlands
Herman van Bekkum
Laboratory of Organic Chemistry and Catalysis, Faculty of Chemical Technology and Materials Science, Delft University of Technology, Julianalaan 136, NL-2628 BL Delft, The Netherlands
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October 1999
Vol. 76 No. 10
p. 1417
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| Abstract |
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This article describes a number of experiments that involve zeolites and are suitable for secondary-school chemistry laboratories. The experiments have been introduced successfully into secondary schools in The Netherlands. Zeolites are used in enormous quantities as builders (water softeners) in laundry detergents; they account for 15-30 wt % of most laundry detergents currently on the European market. In a series of experiments, students test the hardness of tap water before and after treatment with some zeolite and perform tests with a range of commercial laundry detergents containing zeolites. Zeolites are also used as catalysts in numerous industrial processes; another experiment described here highlights the use of zeolites as recyclable catalysts in an esterification reaction. A duplicate reaction is carried out in parallel, but using the conventional sulfuric acid catalyst instead of the zeolite. This experiment provides a good example of the benefit of a recyclable, heterogeneous catalyst over the conventional homogeneous one that is discarded as waste material.
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| More Information |
 Citation |
Coker, Eric N.; Davis, Pamela J.; Kerkstra, Aonne; van Bekkum, Herman. J. Chem. Educ. 1999 76 1417.
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Keywords |
Introductory / High School Chemistry; Ion Exchange; Catalysis; Quantitative Analysis
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History |
Created:
Last Updated: |
September 6, 1999
June 23, 2005
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| Home > JCE Print > Journal of Chemical Education > Issues >
1999
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1417
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