|
|
| Home > JCE Print > Journal of Chemical Education > Issues >
1999
>
October
> |
|
Chemistry Everyday for Everyone
|
|
Secondary School Chemistry
|
|
Experiments with Zeolites at the Secondary-School Level: Experience from The Netherlands
|
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
|
|
October 1999
Vol. 76 No. 10
p. 1417
|
|
|
|
|
|
|
| Abstract |
|
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.
|
|
| More Information |
 Citation |
Coker, Eric N.; Davis, Pamela J.; Kerkstra, Aonne; van Bekkum, Herman. J. Chem. Educ. 1999 76 1417.
|
Keywords |
Introductory / High School Chemistry; Ion Exchange; Catalysis; Quantitative Analysis
|
History |
Created:
Last Updated: |
September 6, 1999
June 23, 2005
|
|
|
|
|
|
| Home > JCE Print > Journal of Chemical Education > Issues >
1999
>
October
> Page
1417
|
|
|
| JCE HS CLIC |
|
Our Secondary School editors work hard to distill all the JCE materials to produce a fraction of particular interest to high school teachers. We call it CLIC.
|
| Contributions Welcome |
| JCE welcomes your submission |
| Advertisers |
| In recent years we have worked hard to better match our advertisers with our readers. When shopping for chemistry education materials, visit our advertisers' WWW sites first. |
| Be An Ambassador |
| Take JCE along on your outreach missions. Copies of the Journal, guest access to JCE Online, our publications catalog, and more are available for your participants. |
|
