Precipitation of Ferricyanide(III) with silver nitrate

Chemicals needed

distilled water

potassium hexacyanoferrate(III)

silver nitrate solution, diluted

Equipment necessary

test tube

Test procedure


The solution is disposed of as silver waste, if this is not available, then as heavy metal waste.


Silver hexacyanoferrate(III) is formed, which like many silver salts is insoluble and therefore precipitates.


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Clear solution of potassium hexacyanoferrate(III)

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Addition of silver nitrate solution causes orange turbidity


Derived from III.13 "Hexacyanoferrat-(III)-nachweis als Ag3[Fe(CN)6]",[3]