[Alt-photo] Re: ferric oxalate properties-looking for information

[Loris Medici]

Hi Peter,

See this article below:
http://www.alternativephotography.com/wp/alt-proc/a-short-treatise-on-iron-salts

There's a s.g. towards the end of the article. Nothing about pH though...

Hope this helps.

Regards,
Loris.



2014/1/18 Peter Friedrichsen <pfriedrichsen at sympatico.ca>

> Having a hard time finding specific gravity and pH values for ferric
> oxalate that I made from ferric hydrate "mud" It is an olive green but more
> yellow when seen through an eye dropper and a 5% solution has a pH of 2.3.
> Anyone know of charts of S.G. vs concentration and expected pH values? Any
> way to determine if free oxalic acid is present?
>
> Thanks,
>
> Peter Friedrichsen
>
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