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Topic: sodium iodide titration  (Read 7375 times)

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sophie

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sodium iodide titration
« on: September 16, 2005, 04:19:37 PM »
please *delete me*!  Doing a sodium iodide titration with 0.05M potassium iodide.  How do I standardize the potassium iodide

Offline Borek

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Re:sodium iodide titration
« Reply #1 on: September 17, 2005, 06:28:22 AM »
You do titration of iodide with iodide?
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Offline sdekivit

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Re:sodium iodide titration
« Reply #2 on: September 17, 2005, 03:38:04 PM »
i would suggest a titration with KMnO4 in acidic environment.

sophie

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Re:sodium iodide titration
« Reply #3 on: September 19, 2005, 10:24:41 AM »
The method is a USP method and titrates sodium iodide with 0.05M potassium iodate VS using amaranth TS as an idicator.  So I should use KMnO4?  How should I go about setting up the standardization?  

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Re:sodium iodide titration
« Reply #4 on: September 19, 2005, 10:50:10 AM »
The method is a USP method and titrates sodium iodide with 0.05M potassium iodate VS using amaranth TS as an idicator.  So I should use KMnO4?  How should I go about setting up the standardization?  

So you need to standardize iodate solution, not iodide, right? Potassium iodate is a standard substance, to prepare standardized solution you just need to weight KIO3 used for solution preparation.
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