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Re: FO test

I believe this will not work: by heart (got my books etc. at home); the
ferrocyanide is part of the bluecomplex; the prussian blue. Anyway you
need the ferricyanide as a "marker" for the FO activity..

I am sure others (Sil?,  Liam?) can explain it much better.

Best,

Cor 

Ps should you need soem PtFerriCN, contact me, I have more than plenty

"Jeffrey D. Mathias" wrote:
> 
> Cecil Ward wrote:
> > ...
> > >I need to test some Ferric Oxalate, but instead of Potassium Ferricyanide,
> > >I am only able to purchase Potassium Ferrocyanide.
> > >Will this work.?
> 
> Potassium Ferricyanide (used to test FO) is
> K3Fe(CN)6
> This works well for testing the FO as outlined in my guide (available at
> link below).
> 
> Potassium Ferrocyanide is
> K4Fe(CN)6
> I do not know what this will do as I have not used it.  I suspect that
> it's valence may not be appropriate for the testing.
> Perhaps a chemist on the list will respond.
> 
> A letter or a number may make a world of difference.
> 
> --
> Jeffrey D. Mathias
> http://home.att.net/~jeffrey.d.mathias/