United States or Suriname ? Vote for the TOP Country of the Week !
Ferridcyanide of potassium, added to a salt of the sesquioxide of iron, yields no precipitate, but merely darkens the reddish-brown solution; with protoxide of iron it gives a blue precipitate, containing Fe Cfdy, which is of a brighter tint than that of Prussian blue, and is known by the name of Turnbull's blue.
The radical ferridcyanogen, isomeric with ferrocyanogen, is supposed to be formed by the coalescence of two equivalents of ferrocyanogen, and is represented by the symbol Cfdy; accordingly the formula of ferridcyanide of potassium is K Cfdy.
Word Of The Day