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Starch indicator



Starch is often used in chemistry as an indicator for redox titrations where iodine is present. This is because starch forms a very dark blue-black complex with iodine. The solution is colourless when Iodide (I-) is present. However the reverse is also true. When Testing for starch in a solution you can use iodine as an indicator to help determine your concentration.

 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Starch_indicator". A list of authors is available in Wikipedia.
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