Finding the end point of an iodine titration. 3 of 5. The titrant, a standard thiosulfate solution, is titrated against the iodate solution until it t

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Finding the end point of an iodine titration. 3 of 5. The titrant, a standard thiosulfate solution, is titrated against the iodate solution until it turns pale yellow. Starch is added to turn it a very dark blue which sharpens the end point. Continue titrating.

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Photo credit: © MARTYN F. CHILLMAID/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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Keywords: -, blue, color, colour, dark, iodate, iodine, iodometric, iodometry, molarity, point, redox, sodium, solution, standard, starch, thiosulfate, titrant, titrated, titrating, titration