Intermolecular Forces- Liquids and Solids- Ethanol Cannon

Ethanol Cannon

 

Description: Plastic containers are filled with a small amount of ethanol and a cork is placed on the top. Touching the nails on the outside of the containers with a Tesla coil causes a spark inside the container which ignites the ethanol vapor, and the cork blows off.

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

Year: 1985 Vol: 2 Page: 216

Keywords: Ethanol, Cork, Tesla coil, Combustion, Spark

Rating:

Hazard: Medium

  • Electrical shock hazard
  • Projectile hazard
  • Flammability hazard
  • Explosion hazard
  • Noise hazard
  • Eye irritation

Effectiveness: Good

  • Somewhat connected to course material
  • Results are clearly observable without guidance
  • Time to results is low
  • High reliability
  • Strong effects are seen by audience

Difficulty: Medium

  • Some sequential manipulations
  • Use of reactive substances
  • Use of high voltage
  • Handling of organic chemicals
  • Manipulations are simple for most to perform

Safety Precautions:

  • Eye protection required
  • Ear protection required
  • ABC fire extinguisher on hand
  • High ceiling (greater than three meters)
  • Use caution when igniting  to minimize projectile hazard
  • Do not look into empty cannon bottle while energizing

Class: Combustion, Organic Chemistry, Thermodynamics

Division: General, Organic Chemistry

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