An acidified iron(III) solution is added to iodide solution to see if oxidation to triiodide will occur.
Acidic aqueous solutions containing dichromate and iodide ions are mixed with no reaction. The addition of a solution of iron(II) ion induces the rapid formation of brown triiodide ion.
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- Design and Demonstration
- George Gilbert Denison University, Granville, OH 43023
- Video
- Jerrold J. Jacobsen University of Wisconsin - Madison, Madison, WI 53706
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- George Gilbert Denison University, Granville, OH 43023
- Kelly Houston Jetzer University of Wisconsin - Madison, Madison, WI 53706
- David Phillips Wabash College, Crawfordsville, IN 47933