Kino said:I am thinking of ordering Formulary Wimberley WD2D+ Pyro Developer Liquid for my first foray into Pyro - opinons?
Thank you.
Frank W.
sanking said:WD2D+ is an excellent developer. The current + formula
is proprietary, so no one knows exactly what is in there, ...
If you have not already done so please have a look at my
article on Pyro ... Devleopers at www.unblinkingeye.com.
There is some good history there about pyro
staining developers. Sandy
dancqu said:He lists the ingredients for WD2D and his tweaked +
version. If I recall correctly the + is for Calgon, the
hexametaphosphate that is. It is the only ingredient
not common to both. I thought that strange as he
recommends only distilled water be used. Perhaps
his concern is with the chemistry itself.
For those that Home-Brew the formula for WD2D
is public domain. Dan
sanking said:My speculation is that the + is for EDTA to get
better sequestering. By the, if you choose to mix the
WD2D and decide to add the + as EDTA, use the alkaline
(tetra?) rather than di 9 (acidic) version. Sandy
jim appleyard said:TF-4 uses 60% ammonium thiosulfate; a liquid. It cannot be kept in a dry powder state and a good part of your cost is shipping liquid from Montana to Ohio. It is good stuff, however.(snip)
jim appleyard said:Also in the "Cookbook" is a formula for an alkaline
fixer made from sodium thio. Sod. thio comes in a
crystal form and is cheaper to ship. It is slower than
TF-3-4 and does not last as long.
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