Verification of alcohols with Cerium(IV) ammonium nitrate
Ethanol F R 11 S (2)-7-16
ceric ammonium nitrate nitric acid solution C R 34 S (1/2)-23-26-27
Other primary or secondary alcohols can also be tested. In the case of water-insoluble alcohols one can use as a solvent, 1,4-Dioxan, for example.
- safety goggles!
- In a test tube with about 1 ml water one adds 3 drops of ethanol.
- Now one adds about 0.25 ml ceric ammonium nitrate nitric acid solution. Quickly a reddish color develops.
- One can dispose the diluted residues into the drainage.
With Cer(IV) primary and secondary alcohols are oxidated into aldehydes or ketones, Cer(IV) is thereby reduced to red Cer(III).
Coloration due to the detection reaction
derived from , p. 709, "Cerium(IV) Nitrate Test"