College of Liberal Arts & Sciences
3A95.59 - Belousov - Zhabotinsky Reactions
Code Number:
References:
3A95.59
Demo Title:
Belousov - Zhabotinsky Reactions
Condition:
Good
Principle:
Chaotic Patterns - Initial Conditions
Area of Study:
Chaos
Equipment:
Sodium Bromate, Malonic Acid, Potassium Bromide, Cerium (IV) Ammonium Nitrate, Sulfuric Acid, Ferroin Indicator, Distilled Water, Beakers, Petri Dishes, Stirring Rods.
Procedure:
See also 3A95.59 in Chaos and Rube Goldberg.
The mixing of chemicals needs to take place before hand. This also take quite a bit of time, so make sure to allow at least 24 hours to get this demo ready. Refer to the file for chemical proportions and mixing instructions.
For every 100 ml of solution use:
| .33g | Malonic Acid |
| .95 g | NaBrO3 |
| .55 g | Ceric Ammonium Nitrate |
| 4.5 ml |
H2SO4 |
*For the KBr make a stock solution using .2 grams KBr per Liter. Use 1 ml of this solution for each 100 ml of reaction solution.
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- Earle S. Scott, Rodney Schreiner, Lee R. Sharpe, Bassam Z. Shakhashiri, and Glen E. Dirreen, "7.2 Cerium-Catalyzed Bromate-Malonic Acid Reaction", Chemical Demonstrations, Vol. 2, p. 257 - 261.
- Earle S. Scott, Rodney Schreiner, Lee R. Sharpe, Bassam Z. Shakhashiri, and Glen E. Dirreen, "7. Oscillating Chemical Reactions", Chemical Demonstrations, Vol. 2, p. 232 - 247.
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