Kinetics- Traveling Waves of Color

Briggs-Rauscher Reaction

Burning Rate Depends on Oxygen Concentration

Chemical Genie in a Bottle

Iodine Clock Reaction

Kinetics of Crystal Violet

Kinetics of the Decomposition of Hydrogen Peroxide by Permanganate

Kinetics of Oxidation of Iodide Ion by Peroxide

Light Sticks

Reaction Rate Depends on Particle Size

Visible Reactive Intermediate

Autocatalysis of Oxalate Ion With Permanganate

Catalytic Combustor

Catalytic Decomposition of Hydrogen Peroxide

Elephant’s Toothpaste

Explosions of Lycopodium and Other Powders

Medicine Cabinet Kinetics

Old Nassau: The Landolt Reaction With Mercury Indicator

Traveling Waves of Color

Catalytic Oxidation of Ammonia

Ignition of Hydrogen on a Platinum Catalyst

Slow Decolorization of Permanganate by Ethanol

Temperature Effect on Reaction Rate

CMW Two Stage Clock Reaction

An Orange Clock Reaction

The Reaction Between Oxalate Ion With Permanganate

Demonstration of Chemical Inhibition

Traveling Waves of Color

White circles and light blue bands appear in a red-orange liquid.
White circles and light blue bands appear in a red-orange liquid.
 

Description: This oscillating system produces different colors that move throughout the solution. This is often done on an overhead projector.

This demonstration is also available on JCE “Chem Demos” Laser disc.

This demonstration is available on JCE Chemistry Comes Alive! CD-ROM, Vol. 7

Source: Shakhashiri, B.Z. Chemical Demonstrations: A Handbook for Teachers of Chemistry

Year: N/A   Vol: N/A   Page: N/A

Keywords: BZ  Reaction, Oscillator, Translational wave, Ferroin,

Ratings:

Hazard: Medium

  • Acute toxicity hazard – oral
  • Aquatic toxicity hazard
  • Inhalation hazard
  • Oxidizer
  • Carcinogenicity
  • Eye irritation
  • Skin corrosion hazard
  • Electric shock hazard

Effectiveness: Average

  • Somewhat connected conceptually to course material
  • Mild effects are seen by audience
  • Time to results is high
  • Moderate failure rate

Difficulty: High

  • Use of sensitive reagents
  • Multi-step procedures with varying results
  • Volume-dependent addition
  • Demo requires training or practice to perform correctly
  • Use freshly prepared reagents
  • Demos in which a display is used

Safety Precautions:

  • Eye protection required
  • Gloves required
  • Use of UL approved three-prong plug and outlet
  • Avoid inhalation of vapors
  • Absorbent materials on hand
  • Perform in a well-ventilated area

Class: Kinetics

Division: General, Physical Chemistry

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