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Topic: Function of starch solution(2)  (Read 6796 times)

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Offline kylon

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Function of starch solution(2)
« on: July 17, 2007, 07:51:53 PM »
When determine the dissolved oxygen using Winkler's method, starch solution is added. What is the function of starch solution?

The topic is separate from "Function of starch solution" because the answer maybe different for different experiment...

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Offline Yggdrasil

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Re: Function of starch solution(2)
« Reply #1 on: July 17, 2007, 08:03:36 PM »
Here the starch is also acting as an indicator for iodide ions.

http://www.lumcon.edu/education/studentdatabase/dissolvedoxygen.asp

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