Ferricyanide definition

fĕrī-sīə-nīd, fĕrĭ-
The complex ion Fe(CN)63− or any of various salts containing it, used in making blue pigments.
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A salt of ferricyanic acid containing the trivalent negative radical Fe(CN)6, in which the iron is trivalent.
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(chemistry) Any of various salts containing the trivalent anion Fe(CN)63-; used in making blue pigments.
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(chemistry) A complex ion in which a central ferric iron atom is surrounded by six cyanide ions.
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Other Word Forms

Noun

Singular:
ferricyanide
Plural:
ferricyanides

Ferricyanide Sentence Examples

  • They combine readily with the alkyl iodides to form alkyl acridinium iodides, which are readily transformed by the action of alkaline potassium ferricyanide to N-alkyl acridones.

  • Potassium ferricyanide, K 3 Fe(NC)s, red prussiate of potash, is obtained by oxidizing potassium ferrocyanide with chlorine, bromine, &c., 2K 4 Fe(NC) 6 + C1 2 = 2K 3 Fe(NC) 6 + 2KC1.

  • With silver nitrate it gives an orange red precipitate of silver ferricyanide, Ag 3 Fe(NC)s.

  • Hydroferricyanic acid, H 3 Fe(NC)s, obtained by adding concentrated hydrochloric acid to a cold saturated solution of potassium ferricyanide, crystallizes in brown needles, and is easily decomposed.

  • It may be recognized by the violet coloration it gives when added to a very dilute solution of potassium bichromate in the presence of hydrochloric acid; by the orange-red colour it gives with a solution of titanium dioxide in concentrated sulphuric acid; and by the precipitate of Prussian blue formed when it is added to a solution containing ferric chloride and potassium ferricyanide.

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