Petri dish, Liquid Oxygen
Dewar, Tongs, Grill Lighter, Animal Crackers

 

Code Number: 4A40.70

Demo Title: Liquid Oxygen - Acceleration of Combustion

Condition: Excellent

Principle: Accelerating Combustion

Area of Study: Thermodynamics

Equipment: 

Petri dish, Liquid Oxygen, Dewar, Tongs, Grill Lighter, Animal Crackers, Cigarettes, Rice Krispies.

Procedure:

NOTE:  This equipment is also used for the 4C30.80 and 5G30.20 demonstrations.

Prepare some liquid oxygen using the copper LOX generator.  Soak the animal cracker or cigarette in the LOX for a period of time.  Place the cracker in a Petri dish and light with the grill lighter.  The cracker should be consumed in a few seconds because of the greatly enhanced presence of oxygen.

References:

  • Greg DiLisi and Stella McLean, "The Apollo 1 Fire: A Case Study in the Flammability of Fabrics", TPT, Vol. 57, #4, Apr. 2019, p. 236.
  • George M. Hopkins', "Liquid Air and its Phenomena", Experimental Science, Volume Two, p. 268.
  • Charles Vivian, "How To Burn Steel", Science Experiments & Amusements For Children, p. 6.