|
Fe2+ |
Fe3+ |
Zn2+ |
Mn2+ |
Al3+ |
(NH4)2S |
czarny osad
|
|
|
|
|
NaOH |
zielonkawy osad
|
|
|
|
--------- |
NH4OH |
----------
|
--------- |
|
-------- |
|
K3[Fe(CN)6] |
ciemnonieb. osad
|
|
|
|
--------- |
K4[Fe(CN)6] |
białonieb. osad
|
|
|
|
---------- |
NH4SCN |
---------
|
|
----------- |
--------- |
--------- |