Belousov-Zhabotinskii Reaction (variation)
Materials
Large Glass Petri Dish or Crystalizing Dish
10 and 25 mL Graduated Cylinders
1 mL Pipet
50 mL Erlenmeyer Flask
Gloves and Goggles
Solutions
- Solution A: 0.6M Sodium Bromate (NaBrO3 )
0.6M Sulfuric Acid (H2SO4) - Solution B: 0.48M Malonic Acid (CH2(COOH)2)
- Solution C: 1gm Sodium Bromide (NaBr) per 10ml H2O
- Solution D: 0.025M Ferroin Sulfate
Procedure
- Mix 14ml solution A with 7ml solution B and 2ml solution C in that order and stir or shake until the orange (bromine) color disappears from the solution.
- Add 1ml solution D and stir until the solution is a homogeneous red.
- Pour enough into a petri dish on an overhead projector to cover the bottom with a thin (~1mm) layer.
Waste Management
Carefully neutralize the solution then pour it down the drain.