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Starch SolutionA solution or suspension of a starch in water. A dilute solution is used to test for elemental iodine. A distinct blue color indicates the presence of iodine in solution. A 0.4% w/w solution is the standard concentration for a dilute starch indicator solution. 0.4% w/w starch solution is made by adding 4 grams of soluable potato starch to 1 litre of heated water; the solution is cooled before use.
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