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  Home > JCE Print > Journal of Chemical Education > Issues > 2000  > May  >
In the Laboratory
Dry-Ice Bath Based on Ethylene Glycol Mixtures
Do W. Lee
Department of Chemistry, Marquette University, Milwaukee, WI 53201

Craig M. Jensen
Department of Chemistry, University of Hawaii at Manoa, Honolulu, HI 96822

Cover
May 2000
Vol. 77 No. 5
p. 629
Abstract
Bath mixtures of ethanol and ethylene glycol in dry ice produce sustainable constant temperatures over the range from -12 to -78 °C, which show a linear relationship between the bath temperature and the volume fraction of ethylene glycol. Our bath is less toxic than previously reported mixtures of ortho- and meta-xylene, and our mixture does not intractably solidify as will dry ice slurries of xylenes. Moreover, the cost of this mixture is less than that of the xylene mixtures.
More Information
*  Citation
 Lee, Do W.; Jensen, Craig M. J. Chem. Educ. 2000 77 629.
*  Keywords
 Laboratory Equipment / Apparatus; Laboratory Instruction; Solutions / Solvents
*  History
 Created:
Last Updated:		 March 31, 2000
April 15, 2005
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