What would the purpose of sodium sulfate be? I guess you mean sodium sulfite?I think you can get Sodium Sulfate as well.
It will work, but like awty implies, you may need to use a higher dilution. Try 1+20.Sodium thio sulfate seems to be the preferred option but is it possible to use the standard chemistry I use for fixing film?
This would be Photographers Formulary TF-4 which contains Ammonium thio sulfate.
Only thiosulfate fixers have been discussed in this thread. Rapid fixer is also a thiosulfate fixer - just ammonium thiosulfate instead of sodium thiosulfate.a thiosulfate fixer
Only thiosulfate fixers have been discussed in this thread. Rapid fixer is also a thiosulfate fixer - just ammonium thiosulfate instead of sodium thiosulfate.
I personally greatly prefer a dilute ammonium thiosulfate rapid fixers for alt. process printing such as salted paper and (if needs be) albumen, as it's much easier to get complete fixing and thus good longevity of the prints. Sodium thiosulfate takes a loooong time to fix completely, especially with albumen. 2x 5 minutes at the very least.
I've seen quite a few people complaining about rapid fixer eating away the image where I had the distinct impression that they were underexposing the prints with negatives with too short a tonal scale, and then underfixing them as the only means to get acceptable contrast in the prints. However, this only works if the prints don't have to be long-term stable.
Maybe a little, but I don't think the difference would be very meaningful. Albumen and salt prints will always need rather thorough washing; there's not all that much I feel can be done about this.Am I correct in my understanding that rapid fixer also washes out easily, eschewing the need for hypoclear treatment (or may be not as vigorous) and a long wash.
You're not supposed to use the same working strength fixer for film and paper, IIRC because film can tolerate much higher levels of silver, and I'd also be worried about debris form paper settling on film...My biggest concern with doing albumen prints is that I don’t want to maintain a separate set of chemicals to do that, if I can get it done with the same stuff I use to develop film, there would be less bottles I have to keep and then dispose properly once exhausted.
I always go with Christopher James chemistry recommendations in his alternative processes textbook
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