RE: fixing van dyke
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.
At 8:22 AM -0400 9/29/06, Ryuji Suzuki wrote:
But bleaching may be greater at lower pH as well...