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In the Classroom
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JCE DigiDemos: Tested Demonstrations
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Colorful Chemical Demonstrations on the Extraction of Anionic Species from Water into Ether Mediated by Tricaprylylmethylammonium Chloride (Aliquat 336), a Liquid–Liquid Phase-Transfer Agent
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Anil Joseph Pezhathinal, Kerensa Rocke, Louis Susanto, Derek Handke, and Roch Chan-Yu-King
Division of Science and Physical Education, University of Science and Arts of Oklahoma, Chickasha, OK 73018
Patrick Gordon
Department of Chemistry, Simmons College, Boston, MA 02115-5898
checked by:
Richard L. Keiter
Department of Chemistry, Eastern Illinois University, Charleston, IL 61920-3099
Eugene N. Losey
Department of Chemistry, Elmhurst College, Elmhurst, IL 60126
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August 2006
Vol. 83 No. 8
p. 1161
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| Abstract |
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Liquid–liquid phase transfer catalysis (LLPTC) plays an ever-increasing role in academic research and in the large scale industrial production of chemicals. This method involves a biphasic medium composed of water and an organic solvent in which the LLPT-catalyst plays a critical role in the transport of some water-soluble reagents (e.g., nucleophiles or bases) from water into the organic layer. This article provides a list of easy to perform and relatively safe experiments that may be used to demonstrate the extraction of some colorful water-soluble reagents by Aliquat 336 into ether. This demonstrative process serves to simulate the preliminary extractive step of an ionic species in LLPT-catalyzed reactions and introduce various undergraduate chemistry concepts and principles to students.
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| More Information |
 Citation |
Pezhathinal, Anil Joseph; Handke, Derek; Rocke, Kerensa; Susanto, Louis; Gordon, Patrick; Chan-Yu-King, Roch. J. Chem. Educ. 2006 83 1161.
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Keywords |
Alkanes / Cycloalkanes; Amines / Ammonium Compounds; Catalysis; Demonstrations; Dyes / Pigments; Hands-On Learning / Manipulatives; Mechanisms of Reactions; Organic Chemistry; Reactions; Second-Year Undergraduate
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History |
Created:
Last Updated: |
6/21/2006
6/29/2006
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