Jacquard Potassium Ferricyanide

Potassium Ferricyanide is a red salt that is used with Ferric Ammonium Citrate for cyanotype.

The chemicals used for cyanotype are inexpensive and go a long way. Despite their perhaps alarming names, they are safe to handle and mix. That said, care should be taken to avoid ingestion, inhalation and contact with skin.