Practise Edexcel IAL Chemistry 10.22 by reading characteristic IR absorptions, predicting peaks for organic compounds and using spectral changes to monitor reactions.
This question is about alcohols and related compounds.
Propan-2-ol is a secondary alcohol. One of its uses is as a solvent to clean the surfaces of vinyl records.
Propan-2-ol can be oxidised to form the ketone, propanone, in a laboratory. However, most propanone produced in industry is made using the Cumene process, where hydrocarbons from oil are used to synthesise cumene.
cumene
Cumene is then oxidised directly to form phenol and propanone.
Propan-1-ol is also a solvent, and can be used as a fuel. The fuel biopropanol, which is mainly propan-1-ol, is formed from glycerol, a waste product of biodiesel production from plant oils.
The reaction used is called hydrogenolysis, and requires catalysts containing nickel, tungsten and zirconium.
The oxidising agent used to oxidise propan-2-ol in a laboratory is an acidified solution containing ions.
Describe how the IR spectrum of the reaction mixture would change during this reaction.
Your answer should consider only the organic reactant and product. Use information from the Data Booklet to support your answer.