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Topic: Analyzing the iron content of samples containing elemental iron and iron(III)?  (Read 5008 times)

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Offline kinerd

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Analyzing the iron content of samples containing elemental iron and iron(III)?
« on: April 05, 2010, 07:19:45 PM »
Potassium permanganate solutions are used directly for the analysis of samples containing iron in the +2 oxidation state. How might samples containing elemental iron and iron in the +3 oxidation state be analyzed for their iron content?

Thanks! I appreciate it.
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Offline Schrödinger

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Re: Analyzing the iron content of samples containing elemental iron and iron(III)?
« Reply #1 on: April 05, 2010, 11:30:57 PM »
KMnO4 is an oxidizing agent that oxidizes Fe2+ to Fe3+. Now what would you do if you had Fe3+?
Hint : It's not common for Fe to have oxidation state greater than 3.
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