Science Behind the Photo #4

The startling yellow chemical in this photo is the ferricyanide anion, [Fe(CN)6]3−. Ferricyanide has a colourful history, rising to prominence for its use in the dark Prussian Blue dye when combined with iron. More recently, its electroactivity has become important in a range of applications. In this experiment, the ferricyanide is being used to mediate, […]