Auto catalyzed reactions | Conversion of Acetone to a Ketene | A Chemistry Demonstration

This video is a demonstration of an auto catalyzed reaction. This is an excellent way to illustrate auto catalyst. Copper is the catalyst here.

You will need a copper penny, drill a hole on the  edge and using a metal wire fasten it to a glass rod. Heat the copper penny until it is red-hot on a Bunsen burner. Turn the Bunsen burner off and suspend the copper penny on the acetone taken in a 100 mL beaker.

The copper penny will continue to glow red-hot, or as long as acetone is present in the beaker.