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  Home > JCE Print > Journal of Chemical Education > Issues > 2001  > August  >
In the Laboratory
The TCICA Test for Distinguishing Aldehydes and Ketones
Gene A. Hiegel,* Christine Juska, and Michelle Kim
Department of Chemistry and Biochemistry, Califonia State University, Fullerton, Fullerton, CA 92834-6866
Cover
August 2001
Vol. 78 No. 8
p. 1105
Abstract
Simple aldehydes and ketones can easily be distinguished by their rate of reaction with trichloroisocyanuric acid (TCICA). The test is conducted by adding the unknown to a solution of TCICA in acetonitrile containing hydrochloric acid and methanol and watching for a precipitate to form. Aliphatic aldehydes react rapidly, aromatic aldehydes generally take longer, and ketones do not react within a laboratory period.
More Information
*  Citation
 Hiegel, Gene A.; Juska, Christine; Kim, Michelle. J. Chem. Educ. 2001 78 1105.
*  Keywords
 Analytical Chemistry; Laboratory Instruction; Organic Chemistry; Qualitative Analysis
*  History
 Created:
Last Updated:		 July 10, 2001
August 31, 2005
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