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Can someone here evaluate this unusual formula for
Cyanotype chemistry found here:
I'm referring to "Recipe #3:
A modern variation"
This recipe uses weak concentrations of Ferric Ammonium citrate and
Potassium Ferricyanide, but adds small amounts of Oxalic Acid and Ammonium
Dichromate.
Can these two additions compensate for the weaker concentrations of
the "main" ingredients? Or is the recipe simply misprinted?
TIA
Marco
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