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PEROXODISULFATE-IODIDE ION REACTION
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Blue Iodide Starch Color Appears (Time = 48.9sec.)
The reaction has proceeded to the point that all the S2O3 2- has been consumed and the blue iodine-starch color appears. Time elapsed = 49.8 sec.
Copyright:© 1992 Richard Megna - Fundamental Photographs
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