The Collaborative International Dictionary
hydrogen ferricyanide
Ferricyanic \Fer`ri*cy*an"ic\, a. [Ferri- + cyanic.] (Chem.) Pertaining to, or derived from, a ferricyanide.
Ferricyanic acid (Chem.), a brown crystalline substance, H6(CN)12Fe2, obtained from potassium ferricyanide, and regarded as the type of the ferricyanides; -- called also hydro-ferricyanic acid, hydrogen ferricyanide, etc.