Jones Oxidation Test (Chromic Acid Test) for
alcohols and aldehydes. Use 4 drops or 5 mg of
unknown in 10 drops of acetone + 1 drop of Jones reagent.
From left to right: 1-hexanol, 1-hexanol + Jones
reagent, cyclohexanol, cyclohexanol + Jones
reagent, p-tolualdehyde, p-tolualdehyde + Jones reagent,
Positive test showing a green color. (Pavia et.al., 3rd Ed.,
pp 463-464)
Note: Amines give false
positive test.
Figure 7.7