Identification of Aldehydes and Ketones: Fehling/Tollen Aldehydes and ketones are a class of organic compounds that contain at least one carbon-oxygen doubl...
Identification of Aldehydes and Ketones: Fehling/Tollen
Aldehydes and ketones are a class of organic compounds that contain at least one carbon-oxygen double bond. These compounds can be identified by using reagents that react with aldehydes and ketones, such as reagents that turn them into different colors.
Test for Aldehydes:
Drag a drop of the aldehyde solution on a blue lit paper.
If the solution turns blue, it is an aldehyde.
Test for Ketones:
Drag a drop of the ketone solution on a red lit paper.
If the solution turns red, it is a ketone.
Explanation:
Aldehydes are compounds that have a carbon atom bonded to an oxygen atom.
Ketones are compounds that have a carbon atom bonded to two hydrogen atoms and an oxygen atom.
Examples:
Formaldehyde is an aldehyde that is used in the food industry.
Acetophenone is a ketone that is used in the production of paints and coatings