Atomistry » Iron » Chemical Properties » Calcium ferrocyanide
Atomistry »
  Iron »
    Chemical Properties »
      Calcium ferrocyanide »

Calcium ferrocyanide, Ca2Fe(CN)6

Calcium ferrocyanide, Ca2Fe(CN)6.xH2O (where x = 11, or 12,), may be obtained by boiling Prussian blue with the calculated quantity of milk of lime. It is also formed when hydrogen cyanide is passed into a suspension of lime and ferrous hydroxide in water. The salt crystallises in pale yellow triclinic prisms, which are more soluble in cold water than in hot.

The density of the salt is 1.68. At 500° C., in the absence of air or oxygen, it decomposes, yielding calcium cyanamide. Thus: -

Ca2Fe(CN)6 = 2CaCN2 + Fe + N2 + 4C.

The osmotic pressures of solutions of calcium ferrocyanide in water have been determined for various concentrations,5 and the results indicate that the negative radicles are associated, yielding the double ion [Fe(CN)6]2''''''''.

Last articles

Zn in 8WB0
Zn in 8WAX
Zn in 8WAU
Zn in 8WAZ
Zn in 8WAY
Zn in 8WAV
Zn in 8WAW
Zn in 8WAT
Zn in 8W7M
Zn in 8WD3
© Copyright 2008-2020 by atomistry.com
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy