[Frameworks] Homemade fixer?

[Erin C.W.]

We have had pretty good results using a salt water fixer (300g/L if I
remember correctly) - either 48 hours at room temperature and no agitation,
or 4h at 45C and constant circulation of the solution (I used a sous vide
to do this. It was a bit tricky to keep things light-tight with a sous vide
sticking out of the container, but it worked.
https://en.wikipedia.org/wiki/Sous_vide).
I put test strips of (5222 negatives processed in caffenol and fixed in
salt water as described above) in the window for 2 months and the image
seemed stable after that amount of time and light exposure.
I'm curious, though, what other people's experiences with salt water fixer
have been.

Erin
https://labcaf.ca/

On Mon, Oct 12, 2020 at 1:39 AM David Kidman <david.kidman at gmail.com> wrote:

> If you are going to go kitchen and garden, you can use salt, it does take
> two days and the émulsion can get waterlogged and start floating away.
> Filtered onion soup with grated Fa stick antiperspirant ( it contains alun)
> works better and quicker, but still an overnight shift. Also mint and sage
> solution gives a clearer negative than caffenol (using an accelerator like
> sodium carbonate, just as with caffenol). I don’t have exact quantities for
> these, a lot of mint and half as much sage, though. It helps to have a wild
> o semi-wild source Io experiment, because the varieties have very different
> results.
> Good luck
>
> David
>
> > On 12 Oct 2020, at 01:47, Scott Dorsey <kludge at panix.com> wrote:
> >
> > You really need fixer, but because the chemistry is pretty much the same
> > all over, the fixer used for kodaliths at the print shop or the t-shirt
> > shop will work... so will the fixer used for x-rays at the hospital.
> >
> > You can just make sodium thiosulfate or ammonium thiosulfate solution
> > without a hardener... it is asking for emulsion damage to do that, but it
> > is better than nothing.
> >
> > The salt solution... sort of works.... it will work for a little while,
> but
> > it won't work very well and you will need to refix your film as soon as
> > possible with a proper fixer.
> >
> > Find a still photographer in your area who might have some idea of
> > old leftover supplies and older photographers.
> > --scott
> >
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