Journal of Research in Primary and Secondary Education

The experiment of catalytic oxidation of ethanol was improved with the help of electric heating rod wrapped with copper wire and Schiff reagent. In the K-type glass tube, the acetaldehyde generated by the reaction is tested by a cotton swab with Schiffs reagent, which is more scientific and environmentally friendly than simply smelling the smell. The copper wire is heated repeatedly by an electric heating rod, the ethanol is atomized by a spray bottle, and the ear ball is pumped into the air to increase the acetaldehyde production. The improved experiment has the advantages of simple operation, obvious phenomenon and universality.

Ethanol catalytic oxidation; Homemade K-type glass tube; Electric heating rod; Schiff reagent