RE: fixing van dyke

[Sandy King <sanking@clemson.edu>]

Title: RE: fixing van dyke

This is the fixing solution I use for both Vandyke and Kallitype.

Concentrate Stock Solution for Fixing of Kallitypes and Vandykes
Water, at 80ºF - 750 ml
sodium thisulfate - 200g
sodium carbonate - 40g
sodium sulfite - 8g
Water to 1000 ml

To mix  a  working solution, dilute 1 Part of Stock Solution + 3 Parts of water. I fix with two solutions, each for two minutes. The last is always fresh.

I have never actually tested the pH but am fairly certain it would be fairly alkaline.

My belief is that by the time a print makes it to the fixer the iron compounds should have already been removed.

Sandy

At 8:22 AM -0400 9/29/06, Ryuji Suzuki wrote:

> But bleaching may be greater at lower pH
> as well...
>
> Come to think of it, someone could make a neutral/weakly alkaline
> fixer
> that contains something that facilitates removal of iron
> compounds...
>
>
> On Fri, 29 Sep 2006 15:17:30 +0300, "Loris Medici"
> <mail@loris.medici.name> said:
> > Is that a problem? I see acidic PH as plus because it will not
> promote
> > formation of iron hydroxides...
> >
> > Regards,
> > Loris.
> >
> > -----Original Message-----
> > From: Ryuji Suzuki [mailto:rs@silvergrain.org]
> > Sent: 29 Eylül 2006 Cuma 15:03
> > To: alt-photo-process-l@usask.ca
> > Subject: RE: fixing van dyke
> >
> >
> > One obvious concern is that Ilford Rapid wash is probably pH of
> about 5.
> >
> > ...
> >