Anion in which a Fe2+ ion is complexed by 6 CN− ions
Ferrocyanide ion
Identifiers
CAS Number
13408-63-4Y
3D model (JSmol)
Interactive image
ChEBI
CHEBI:5032
ChemSpider
10446887
KEGG
C01913
PubChem CID
9552077
UNII
FLX0VIC39YY
CompTox Dashboard (EPA)
DTXSID0065436
InChI
InChI=1S/6CN.Fe/c6*1-2;/q6*-1;+2
Key: UETZVSHORCDDTH-UHFFFAOYSA-N
SMILES
N#C[Fe-2](C#N)(C#N)(C#N)(C#N)C#N
Properties
Chemical formula
C6FeN64−
Molar mass
211.955 g·mol−1
Related compounds
Related compounds
Ferricyanide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound
Ferrocyanide is the name of the anion [Fe(CN)6]4−. Salts of this coordination complex give yellow solutions. It is usually available as the salt potassium ferrocyanide, which has the formula K4Fe(CN)6. [Fe(CN)6]4− is a diamagnetic species, featuring low-spin iron(II) center in an octahedral ligand environment. Although many salts of cyanide are highly toxic, ferro- and ferricyanides are less toxic because they tend not to release free cyanide.[1] It is of commercial interest as a precursor to the pigment Prussian blue and, as its potassium salt, an anticaking agent.[2]
^Holleman, A. F.; Wiberg, E. (2001). Inorganic Chemistry. San Diego: Academic Press. ISBN 0-12-352651-5.
^Gail, E.; Gos, S.; Kulzer, R.; Lorösch, J.; Rubo, A.; Sauer, M.; Kellens, R.; Reddy, J.; Steier, N.; Hasenpusch, W. (2011). "Cyano Compounds, Inorganic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a08_159.pub3. ISBN 978-3527306732.
Ferrocyanide is the name of the anion [Fe(CN)6]4−. Salts of this coordination complex give yellow solutions. It is usually available as the salt potassium...
Sodium ferrocyanide is the sodium salt of the coordination compound of formula [Fe(CN)6]4−. In its hydrous form, Na4Fe(CN)6 · 10 H2O (sodium ferrocyanide decahydrate)...
Paris blue) is a dark blue pigment produced by oxidation of ferrous ferrocyanide salts. It has the chemical formula FeIII 4[FeII (CN) 6] 3. Turnbull's...
hexacyanidoferrate(II), which he achieved by reacting Prussian blue (iron(III) ferrocyanide) with potassium hydroxide. Potassium hexacyanidoferrate(II) is produced...
Calcium ferrocyanide is an inorganic compound with the formula Ca2[Fe(CN)6]. It is the Ca2+ salt of [Fe(CN)6]4-, ferrocyanide complex ion. A yellow solid...
their complexation with iron, ferrocyanides (Sodium ferrocyanide E535, Potassium ferrocyanide E536, and Calcium ferrocyanide E538) do not decompose to lethal...
react with the soluble ferrocyanide in the stain to form the insoluble Prussian blue pigment (a complex hydrated ferric ferrocyanide substance). These deposits...
stain; iron in hemosiderin turns blue to black when exposed to potassium ferrocyanide. In normal animals, hemosiderin deposits are small and commonly inapparent...
Iron(III) centres occur in coordination complexes, such as in the anion ferrocyanide, [Fe(CN)6]4−, where six cyanide ligands are bound the metal centre; or...
is manufactured by passing chlorine through a solution of potassium ferrocyanide. Potassium ferricyanide separates from the solution: 2 K4[Fe(CN)6] +...
Oh symmetry. The iron is low spin and easily reduced to the related ferrocyanide ion [Fe(CN)6]4−, which is a ferrous (Fe2+) derivative. This redox couple...
Wh/L. Alkaline AORFBs use excess potassium ferrocyanide catholyte because of the stability issue of ferrocyanide in alkaline solutions. Metal-organic flow...
involves a non-enzymatic reaction of ferrous iron with ferrocyanide forming ferric-ferrocyanide, which is blue in color. A counterstain may be used to...
Cheshire. Prior to distribution it is mixed with <100 ppm of sodium ferrocyanide as an anticaking agent, which enables rock salt to flow freely out of...
indole synthesis. It gives a violet color upon treatment with potassium ferrocyanide.[citation needed] Skatole, along with the fecal odorant indole, can be...
a complementary red with a copper ferrocyanide solution, and the red being toned blue/cyan with ferric ferrocyanide solution. Multicolor enjoyed brief...
occurs at the cathode. It is possible to reduce ferricyanide ions to ferrocyanide ions at the cathode: Fe(CN)3- 6 + e− → Fe(CN)4- 6 Neutral molecules can...
complexes, sandwich and half-sandwich compounds. Prussian blue or "ferric ferrocyanide", Fe4[Fe(CN)6]3, is an old and well-known iron-cyanide complex, extensively...
contrast to Pappenheimer bodies, they are negative with Perls' acid ferrocyanide stain for iron (i.e. no iron in basophilic stippling). Basophilic stippling...
Cl 2 → 2 [Fe(CN)6]3− + 2 Cl− The reducing agent in this reaction is ferrocyanide ([Fe(CN)6]4−). It donates an electron, becoming oxidized to ferricyanide...
(WS2− 4) and similar ions. Cyanometallates include ferricyanide and ferrocyanide. Metallate is also used as a verb by bioinorganic chemistry to describe...
candles, etc. Sepia tone - Processed through a silver sulfide ferrocyanide or uranium ferrocyanide solution.[citation needed] It was popular as an alternative...
histology samples for collagen, and for fungal structures. Potassium ferrocyanide Potassium ferricyanide Methylene blue Egyptian blue Han Purple Crystal...
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