Kinetics- Demonstration of Chemical Inhibition

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

Explosion 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

Demonstration of Chemical Inhibition

Description:  Three beakers containing water, sulfuric acid, potassium iodide and a metal salt. The three salts impart differing reactivity and color changes to the three systems upon the addition of hydrogen peroxide.

Source: UW Card catalog

Year: N/A  Vol:  N/A   Page: N/A

Rating:

Keywords: Chemical Inhibition, Copper, Manganese, Acid

Hazard: Some

• Corrosive to metals
• Skin corrosion hazard
• Serious eye damage
• Oxidizing solids
• Skin irritation
• Eye irritation
• Specific target organ toxicity – single exposure – respiratory system
• Specific target organ toxicity – repeated exposure – inhalation, brain
• Short-term (acute) aquatic toxicity
• Long-term (chronic) aquatic toxicity
• Acute toxicity – oral

Effectiveness: Good

• Results are clearly observable without guidance
• Contrast between systems behavior is clear
• Some connection from demo to course material
• Time to results is low
• Good reliability
• Mild effects are observed by audience

Difficulty: Medium

• Adding reagents sequentially
• Simple manipulations
• Procedures with some intermediate steps to results
• Use of mildly reactive substances

Safety Precautions:

• Eye protection required
• Gloves required
• Lab coat recommended
• Avoid Exposure to dusts, mists, and vapors
• Prepare in a well-ventilated area
• Use UL approved three-prong plug and outlet
• Avoid release of reagents to the environment

Class: Catalysis, Kinetics

Division: General

Home