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  Home > JCE Print > Journal of Chemical Education > Issues > 2001  > October  >
In the Laboratory
The Purification of Water by Freeze-Thaw or Zone Melting

James Oughton and Silas Xu
St. Andrew's College, Christchurch, New Zealand

Rubin Battino
Department of Chemistry, Wright State University, Dayton, OH 45435
Cover
October 2001
Vol. 78 No. 10
p. 1373
Abstract

A simple method for purifying water via freeze-thaw or zone melting is presented. The method involves aqueous NaCl solutions and a home freezer and the determination of conductivity.

See Letter re: this article.
More Information
*  Citation
 Oughton, James; Xu, Silas; Battino, Rubin. J. Chem. Educ. 2001 78 1373.
*  Keywords
 Conductivity; Introductory / High School Chemistry; Laboratory Instruction; Phase Transitions / Diagrams
*  History
 Created:
Last Updated:		 September 13, 2001
August 31, 2005
Link to Letter added (June 2004).
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