Description of experiment
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Needed compounds:
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potassium ferrocyanide : K4 [Fe(CN)6] . 3H2O
cobalt chloride : CoCl2.6H2O
Class:
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elem=Co,Fe
coordination
precipitation
Summary:
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Cobalt salts give a nicely colored precipitate with ferrocyanide.
Description:
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Add a solution of CoCl2.6H2O to a solution of potassium ferrocyanide (an
excess amount of ferrocyanide was used): A grass/green precipitate is
created.