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Topic: Which reactions could happen?  (Read 2126 times)

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Offline zokora

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Which reactions could happen?
« on: February 06, 2014, 08:15:14 AM »
Dear all,

I mixed 2 solutions: FeCl2 (light green) and NaHSO3. It appears orange yellow color immediately. Then I had left the solution for 1 day, the red yellow color returned light green (like FeCl2).
I was wondering whether Fe(II) combine with HSO3 to become complexes? Thanks in advance.
Sorry for my bad English
« Last Edit: February 06, 2014, 09:43:20 AM by zokora »

Offline zokora

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Re: Which reactions could happen?
« Reply #1 on: February 12, 2014, 08:50:23 AM »
Anybody?

Offline Corribus

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Re: Which reactions could happen?
« Reply #2 on: February 12, 2014, 09:42:16 AM »
Well, ferrous salts are generally green in solution and ferric salts tend to be yellow-brown. Bisulfite is a reducing agent that will slowly react with dissolved oxygen to form sulfate.

Does this give you any clues to what may be happening?
What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman

Offline zokora

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Re: Which reactions could happen?
« Reply #3 on: February 24, 2014, 05:25:31 AM »
Thanks Corribus,

I also thought about that possibility. But I didnt see any precitipation, just the yellow-brown solution. Additionally, the solution turned to the initial color (light green) after 1 day.

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