Potassium ferricyanide

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(Chem.) red prussiate of potash; a dark, red, crystalline salt, K6(CN)12Fe2, consisting of the double cyanide of potassium and ferric iron. From it is derived the ferrous ferricyanate, Turnbull's blue.

See also: Ferricyanide

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.