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How to prepare the Iodine Clock Reaction

2014-05-01

[public] 39.9K views, 779 likes, 8.00 dislikes audio only

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This is an interesting reaction where two clear solutions are mixed, then after a period of time a sudden and drastic color change occurs.

I used the guide found at this link: http://www.nuffieldfoundation.org/practical-chemistry/iodine-clock-reaction


Chemicals
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Wet the starch
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Add 9.4g sodium thiosulfate
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Add 4.1g sodium acetate
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Add 50g potassium iodide
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