The Steaming Gun


The experiments described in these materials are potentially hazardous. Among other things, the experiments should include the following safety measures: a high level of safety training, special facilities and equipment, the use of proper personal protective equipment, and supervision by appropriate individuals. You bear the sole responsibility, liability, and risk for the implementation of such safety procedures and measures. MIT and Dow shall have no responsibility, liability, or risk for the content or implementation of any of the material presented. Legal Notice


Flash and JavaScript are required for this feature.

Download the video from iTunes U or the Internet Archive.

Previous track Next track

In a dark bottle at room temperature, hydrogen peroxide decomposes very, very slowly. But add manganese dioxide, and that same reaction happens thousands of times faster, with very... tall results.

Teaching Notes:
Chemical Transformation I: Decomposition with H2O2 with MnO2 (PDF)
Chemical Transformation II: Decomposition with H2O2 with KI (PDF)

Chemistry Magician: Dr. John Dolhun


You can also view this video on TechTV.

Free Downloads