End point of an iodine titration. 3 of 5.

End point of an iodine titration. 3 of 5.

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Credit: MARTYN F. CHILLMAID/SCIENCE PHOTO LIBRARY

Caption: 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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Keywords: color, colour, dark blue, end point, iodate solution, iodine titration, iodometric titration, iodometry, known molarity, no-one, nobody, redox titration, sodium thiosulfate, standard solution, starch solution, titrant, titrated, titrating, volumetric chemical analysis

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