[Rutherford]

Which of the following ions can react with K₄[Fe(CN)₆]: Al³⁺, Fe³⁺, Sn²⁺, Mn²⁺, Zn²⁺?
I know that zinc makes a white precipitate and iron(III) creates a blood-like colored solution. What about the rest?

[Borek]

iron(III) creates a blood-like colored solution

Does it?

http://en.wikipedia.org/wiki/Prussian_blue

I would expect others to precipitate as well, but no idea about details.

[Rutherford]

Thank you. If someone knows the details I would be thankful if he shares them here.

[billnotgatez]

http://en.wikipedia.org/wiki/Potassium_ferrocyanide
Potassium ferrocyanide
Is this the compound you are discussing

[Rutherford]

There is only one reaction explained there, of iron(III).

[SinkingTako]

Upon searching I found this:

Manganese ferrocyanide, Mn2Fe(CN)6, is a white substance, which is turned green by chlorine water and oxidised to brown ferricyanide by bromine water.

From
http://tera-3.ul.cs.cmu.edu/NASD/4dcb85c3-9fee-4c83-9e6d-fe6ce5522b59/China/disk1/48/31005177/PDF/00000238.pdf

Not much really, though you can try looking for the paper cited.

The tin ferrocynate exists too, though I can't find much information.

[Rutherford]

Thanks. Manganese is also white as zinc, and it turns green in chlorine water and brown by bromine water.
Aluminum and tin left.

[Rutherford]

I finally found something for aluminum. On heating with the addition of sulfuric acid, the solution becomes deep blue colored. No immediate color change when cold, but a faint blue solution may develop.