What is Prussian Blue in Chemistry? Prussian blue(Fe4[Fe(CN)6]3·xH2O) is a dark blue synthetic inorganic pigment from the ferricyanide coordination class. It is made up of ferrous (Fe3+) and ferrous(Fe2+) ions bound by a cyanide bond (-CN). The formation of Prussian blue results from the reaction between potassium ferricyanide (K4[Fe(CN)6]) and ferric chloride (FeCl3), which leads […]
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