basic question on mixing up cyanotype sensitizer

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From: Hadi Alsegaf (halsegaf@mindspring.com)
Date: 02/15/02-09:23:58 AM Z

I bought a Mike Ware cyanotype kit from Photo Formulary and was curious
about making the sensitizer and light sensitivity. Specifically, at what
point does the formula become light sensitive? when I mix in the Potassium
Ferricyanide into the Ammonium Iron(III) Oxalate solution? Is the Ammonium
Iron(III) Oxalate solution light sensitive on it's own? Just curious.
Thanks

Hadi Alsegaf

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