1. Potassium ferricyanide is usually used as an oxidizing chemical in such experiments (Eo' ~ .436 V at pH 7).

2. The Cyanotype process is started by mixing equal parts of two chemicals, ferric ammonium citrate and potassium ferricyanide

3. A rapid method for determining the content of sodium hydrosuphite in vat steam was undertaken via potassium ferricyanide titration.

4. Cyanotype process is based on the mixture of two chemicals, Ammonium Ferric Citrate (light sensitive iron salt) and Potassium Ferricyanide (red iron salt)

5. The general principle of the Cyanotype process is the photochemical reduction of iron (III) salts to iron (II) salt that reacts with potassium ferricyanide (red prussiate of iron), forming an intensely blue complex