Burning Rate Depends on Oxygen Concentration
Kinetics of Decomposition of Hydrogen Peroxide by Permanganate
Kinetics of Oxidation of Iodide Ion by Peroxide
Reaction Rate Depends on Particle Size
Autocatalysis of Oxalate Ion With Permanganate
Catalytic Decomposition of Hydrogen Peroxide
Explosion of Lycopodium and Other Powders
Old Nassau: The Landolt Reaction With Mercury Indicator
Catalytic Oxidation of Ammonia
Ignition of Hydrogen on a Platinum Catalyst
Slow Decolorization of Permanganate by Ethanol
Elephant’s Toothpaste
Description: Three solutions are mixed together and copious foam is produced along with a color change to yellow. This is primarily an attention-getter.
Source: UW Card Catalog
Year: N/A Vol: N/A Page: N/A
Keywords: Hydrogen peroxide, Potassium iodide, Detergent, Dawn, Catalysis
Rating: 
Hazard: Medium
- Acute toxicity hazard – oral, inhalation
- Skin corrosion hazard
- Oxidizer
- Scald hazard
- Burn hazard
- Serious eye damage
- Aquatic toxicity hazard – short term, long term
Effectiveness: Good
- Good connection from demo to course material
- Results are clearly observable without guidance
- Time to results is low
- Strong effects are seen by audience
- High reliability
Difficulty: Medium
- Some intermediate steps to results
- Use of toxic or reactive chemicals
- Prior practice recommended
- Simple procedures
- Simple manipulations for most to perform
Safety Precautions:
- Eye protection required
- Gloves required
- Lab coat recommended
- Thermal gloves recommended
- Perform in a well-ventilated area
- Recommended ceiling height – three meters
- Do not stopper bottles used in demonstration
- Avoid generated steam or vapors
- Prevent release of reagents to the environment
Class: Gas Producing Reaction, Catalysis
Division: General
The demonstration Elephant’s Toothpaste may be found under Types of Chemical Reactions- Elephant’s Toothpaste.
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