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Meaning of potassium ferricyanide

potas'sium ferricy'anide

Pronunciation: [key]
— Chem. Chem.
  1. a bright-red, crystalline, water-soluble, poisonous solid, KFe(CN), used chiefly in the manufacture of pigments, as Prussian blue, and of paper, esp. blueprint paper. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.