Explosive Decomposition of Nitrogen Triiodide
Volume Increase Upon Neutralization
Shapes of Soap Films and Bubbles
Surface Spreading and Surface Tension
Surface Tension of Water: The Floating Paper Clip
Will Tissue Hold Water? Interfacial Tension
Surface Tension: Floating Duck
Effect of Heating a Rubber Band and a Spring
Surface Tension With Oil and Pepper
Household Chemical Density Column
Evaporation as an Endothermic Process
Household Chemical Density Column
Description: A column of liquids of differing densities. All liquids are easily available household “chemicals” such as Karo Syrup, vegetable oil, and rubbing alcohol.
Source: Chem13 News #165 May/September
Year: 1986 Vol: N/A Page: 15
Keywords: Density Column, Syrup, Oil, Alcohol
Rating: 
Hazard: Low
- Flammable liquids
- Acute toxicity
- Specific organ damage – central nervous system
Effectiveness: Good
- Results are observable without guidance
- Mild effects are seen by audience
- Time to results is low
- Some connection to course material
Difficulty: Low
- Some sequential addition is recommended
- Use of mildly reactive substances
- Procedures with some intermediate steps to results
- Sequential manipulations
Safety Precautions:
- Eye protection required
- Absorbent material on hand
- ABC fire extinguisher on hand
- Avoid open flames during presentation
Class: Physical properties, Solubility
Division: General, Physical Chemistry
Return to Physical Chemistry Demonstrations