Reaction Summary
Reagents
- Acidified potassium dichromate(VI),
/ dilute
Conditions
- Heat and distil immediately
Catalyst
- None
Chemical Equation
Equation
By-Products
Observations
Observations
- Orange solution turns green (
➔ )
⚠️ 9701 Exam Notes / Pitfalls
Warning
- ‘Distil (the aldehyde off) as it forms’ is the mark — the aldehyde has a lower b.p. (no H-bonding) so it escapes before further oxidation.
- Reflux instead ➔ carboxylic acid.