Carl Weese (cjweese@wtco.net)
Sat, 20 Feb 1999 14:30:19 -0500
Adam Kimball wrote:
>
> I know it has been mentioned before, but could someone provide a formula for
> Rollo Pyro- on or offlist? I'd like to give Pyro a try.
>
> -Adam
Here you go, cut&paste from The New Platinum Print:
Pyro Formulas
Gordon Hutchings PMK
Solution A
Distilled water 400 ml
Metol 5 gm
Sodium Bisulfite 10 gm
Pyrogallol 50 gm
EDTA tetra sodium (optional) 5 gm
Distilled water to make 500 ml
Solution B
Distilled water 700 ml
Sodium Metaborate 300 gm
Distilled water to make 1000 ml
Rollo Pyro
Part A
Distilled water 800 ml
Sodium Bisulfite 20 gm
Metol 20 gm
Pyrogallic Acid 150 gm
Ascorbic Acid (Vitamin C) 10 gm
Potassium Bromide 1.5 gm
EDTA tetra sodium 2-5 gm
Distilled water to make 1000 ml
Part B
Sodium Metaborate 300 gm
EDTA tetra sodium 5 gm
Distilled water 1000 ml
---Carl
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