Chemiluminescent Ammonia Fountain
Crystallization from Supersaturated Solutions of Sodium Acetate
Density and Miscibility of Liquids
Electrical Conductivity of Liquids and Solutions
Osmotic Pressure of a Sugar Solution
Vapor Pressure of Solutions: Raoult’s Law
A Visual Demonstration of Raoult’s Law
Water Softening – Hard and Soft Water With Soap
Clean Air With the Cottrell Precipitator
Color of Sunset: The Tyndall Effect
Getting Colder: Freezing Point Depression
Getting Hotter: Boiling Point Elevation by Nonvolatile Solutes
Salting Out: Making Liquids Immiscible
Volume Increase Upon Neutralization
Chemiluminescent Ammonia Fountain
Description: A standard ammonia fountain, but one in which two solutions from the standard luminol reaction are drawn from separate flasks. When the solutions mix, the fountain luminesces.
Source: Journal of Chemical Education
Year: 1990 Vol: 67 Page: 339
Keywords: Luminol, Ammonia, Vacuum, Chemiluminescence, Solubility
Rating: 
Hazard: Medium
- Inhalation hazard
- Acute toxicity hazard
- Flammability hazard
- Skin corrosion hazard
- Eye damage hazard
- Aquatic toxicity hazard
- Implosion hazard
Effectiveness: Excellent
- Spectacular effects are seen by audience
- Deeply engaging to audience
- Good connection to course material
- Clear contrast between behavior of systems
- Counterintuitive effects
- Time to results is low
- Medium/low failure rate
Difficulty: Low
- Simple procedures
- Simple manipulations for most to perform
Safety Precautions:
- Eye protection required
- Gloves required
- Absorbent material on hand
- Preform in a well-ventilated area
- Sodium bicarbonate on hand
Class: Solubility, Properties of Solutions, Acids and Bases
Division: General
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