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  Home > JCE Print > Journal of Chemical Education > Issues > 2007  > October  >
Chemistry for Everyone
JCE Classroom Activity
Testing for Iodide in Table Salt
Stephen W. Wright
Pfizer Global Research and Development, Groton, CT 06340
Cover
October 2007
Vol. 84 No. 10
p. 1616A

Abstract
This Activity uses supermarket chemicals to test samples of table salt for the presence of iodine, an essential micronutrient added as iodide ion. The presence of iodide in the salt is made apparent by the appearance of a blue color.
More Information
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Citation
Wright, Stephen W. J. Chem. Educ. 2007, 84, 1616A.
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Keywords
Consumer Chemistry; Distance Learning / Self Instruction; Elementary / Middle School Science; High School / Introductory Chemistry; Iodine; Nutrition; Public Understanding / Outreach; Qualitative Analysis
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History
Created:
Last Updated:
8/20/2007
9/7/2007
 Caution! 
Experiments, laboratory exercises, lecture demonstrations, and other descriptions of the use of chemicals, apparatus, instruments, computers, and computer interfaces are presented in the Journal of Chemical Education as illustrative of new or improved ideas or concepts in chemistry instruction and are directed at qualified teachers. Although every effort is made to assure and encourage safe practices and safe use of chemicals, the Journal of Chemical Education cannot assume responsibility for uses made of its published materials. Many chemicals are hazardous. Precautions for the safe use of hazardous chemicals and directions for their proper disposal are described in the Material Safety Data Sheets and on the labels. We strongly urge all those planning to use materials from our pages to make choices and to develop procedures for laboratory and classroom safety in accordance with local needs and situations.
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