Re: Ferric Oxalate

Terry King (KINGNAPOLEONPHOTO@compuserve.com)
Sun, 03 Aug 1997 03:15:48 -0400

Message text written by "Eric J. Neilsen"
>I can accept Brian's reason (or lack thereof), except that I do not
> believe that there is any ferrous in Brian's F.O., but rather some other
> material which reacts with Potassium Ferricyanide. It would be a good
> research effort form someone to analyze the contents of the F.O. I do
> not have the time nor equipment.
> <

I use the peroxide method to make my FO. The end test is to add Peroxide
until the FO stops testing blue, in other words until the ferrrous has been
converted to ferric. Is there any reason why adding a few drops of
peroxide (28%) to FO made using other methods should not have the same
effect of converting the remaining ferrous to ferric and thus getting rid
of the blue when the ferricyanide test is made ?

Terry King