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Topic: EDTA to extract iron in molten salt  (Read 2915 times)

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Offline jame2409

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EDTA to extract iron in molten salt
« on: February 03, 2015, 10:59:48 AM »
can EDTA be used to remove iron from a molten salt bath.  The temperature is about 580 degrees C.  EDTA melts at over 200 C, and boils at over 600 C.  does it still work in the melted form and could it be used to bind to any iron in solution to be able to extract it?  the salt in question is sodium cyanide

Thanks

Offline Enthalpy

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Re: EDTA to extract iron in molten salt
« Reply #1 on: February 05, 2015, 09:24:04 AM »
Hi jame2409!

I expected EDTA to decompose before reaching 600°C... Is it that stable? From Sigma-Aldrich's safety datasheet, I read:
"Melting range: 250°C - decomposes" and "boiling point: no data"
which I interpret as decomposition beginning around 250°C, a more expected value for an organic compound.

Could it be that you read for the boiling point a
"predicted value: 600°C"?
Don't believe computed values, never ever.

Other people here must know it better than I.

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