Strontium ferricyanide

Strontium ferricyanide, Sr3[Fe(CN)6]2.14H20, obtained in an analogous manner to the barium salt, cry tallises in reddish brown prisms.6... 

Strontium potassium ferricyanide, SrKFe(CN)6.3H20 Strontium sodium ferricyanide, SrNaFe(CN)6.3H20 and Strontium ammonium ferricyanide, SrNH4Fe(CN)6.3H20 have also been prepared. 

White silver cyanide, thiocyanate, ferro- and yellow ferricyanide are decomposed with production of ignition-resistant silver. All metal ferro- and ferricyanides of the base metals leave a residue of ferric oxide and the particular metal oxide. For instance, the colorless ferrocyanides of zinc, cadmium, magnesium, calcium, barium, strontium, thorium etc. become yellow-brown Prussian blue and Turnbull s blue become dark (Fe304) and, later, brown (FegOg). Cupric ferricyanide (brown) and cupric ferrocyanide (violet-brown) are blackened when ignited because of the formation of cupric oxide. 

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