What is Potassium Ferrocyanide?

Potassium ferrocyanide is an not natural compound through the chemical formula K4Fe(CN)6. Potassium ferrocyanide is additionally known as yellow potash prussiate, a yellow crystal. It was made through wool or horn clippings stirring warm potassium carbonate with an stole rod. Potassium ferrocyanide was offered for specific iron processes as a developer and also as an additive for developer of alkaline pyro.

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Other name – yellow prussiate that potash, potassium hexacyanoferrate (II)


K4Fe(CN)6Potassium ferrocyanide
Density1.85 g/cm³
Molecular Weight/ Molar Mass368.35 g/mol
Boiling Point400 °C
Melting Point300 °C
Chemical FormulaK4Fe(CN)6

Potassium Ferrocyanide framework – K4Fe(CN)6

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Physical nature of Potassium Ferrocyanide – K4Fe(CN)6


OdourNo odour
AppearanceLight yellow, crystalline granules
Covalently-Bonded Unit10
Hydrogen bond Acceptor12
Complexity127
SolubilityInsoluble in ethanol, ether

Chemical nature of Potassium Ferrocyanide – K4Fe(CN)6

K4 + 6H2SO4 + 6H2O → 2K2SO4 + FeSO4 + 3(NH4)2SO4 + 6CO

K4 + FeCl3 → KFe + 3 KCl

Uses of Potassium Ferrocyanide – K4Fe(CN)6

Used in the tempering that steel and also in procedure engraving. That is employed in the manufacture of pigments and also as a chemistry reagent.A little amount in pyro and also hydroquinone developers tends to lower fog and also give higher density.Used in the to produce of potassium cyanide, which is used extensively in yellow mining.Ferro Cyanogen forms with most metal compounds insoluble in water some of which exhibit highly characteristic colours. That serves as a test because that cupric and also ferric compounds.

Frequently asked Questions

What space the offers of potassium ferrocyanide?

Potassium ferrocyanide has numerous niche offers in industry. It and also the associated sodium salt (sodium ferrocyanide) are frequently used because that both road salt and also table salt as anti creating agents. Also, potassium and sodium ferrocyanides are supplied to to wash tin and also isolate copper from molybdenum ores. Potassium ferrocyanide is likewise used because that wine and citric mountain production.

Is potassium ferrocyanide toxic?

Potassium ferrocyanide is no toxic to humans due to the fact that it is not decomposed come cyanide in the body. However, if mixed with solid acids, this compound deserve to be possibly fatal.

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How deserve to potassium ferricyanide be ready from potassium ferrocyanide?

A 100 g potassium ferrocyanide solution in 1000 ml water need to be saturated through chlorine, and stirred regularly, till the solution mirrors a fine, deep red colour.