U of S | Mailing List Archive | alt-photo-process-l | Re: ferric oxalate

Re: ferric oxalate

12 Kasım 2008, Çarşamba, 10:24 am tarihinde, Loris Medici yazmış:
> 12 Kasım 2008, Çarşamba, 10:15 am tarihinde, Alberto Novo yazmış:
>>> I had the same experience at a workshop this summer...
>>> powder formed incredibly hard, granite-like clumps  that were
>>> impossible to dissolve, even if you crushed the clumps via  mortar and
>>> pestle.
>> Are you sure it were not ferrOUS oxalate, a yellowish powder instead of
>> green crystals? I have never found ferric oxalate sold by the main
>> chemistry
>> suppliers.
> Is ferrous oxalate a defined compound? Can one oxidise it (w/ hyrdogen
> peroxide) to get ferric oxalate?

Nevermind, I found this: