Potassium Ferricyanide
chemical formula: K3Fe(CN)6
( granular )
Potassium Ferricyanide (also known as 'Prussian Red' is soluble in water and its solution shows some green-yellow fluorescence. It has widespread used in blueprint drawing and in photography. It is also used to temper Iron and Steel, in electroplating, dyeing wool and as a mild oxidizing agent in organic chemistry. Potassium Ferricyanide does not exhibit the deadly toxicity found in many Cyanide compounds due to the strong chemical bonds between the Iron and Cyanide groups.
MSDS ( Material Safety Data Sheet )