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POTASSIUM FERROCYANIDE & POTASSIUM FERRICYANIDE<br />
Left: K4Fe(CN)6, Right: K3Fe(CN)6<br />
Compounds of ions of the same element but with different charge can be very different in appearance. Potassium ferrocyanide (K4Fe(CN)6) contains Fe(II) ion. Potassium ferricyanide (K3Fe(CN)6) contains Fe(III) ion.

Fphoto-25879001C-2RM.jpg

POTASSIUM FERROCYANIDE & POTASSIUM FERRICYANIDE
Left: K4Fe(CN)6, Right: K3Fe(CN)6
Compounds of ions of the same element but with different charge can be very different in appearance. Potassium ferrocyanide (K4Fe(CN)6) contains Fe(II) ion. Potassium ferricyanide (K3Fe(CN)6) contains Fe(III) ion.

Copyright:© 1990 Richard Megna - Fundamental Photographs

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