How To Make Non-Toxic Smoke or Fog
[Your Guide, Anne Marie Helmenstine, Ph.D.] From Anne Marie Helmenstine, Ph.D.,
Your Guide to Chemistry.
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While renting a smoke machine is a reliable option, here are fog instructions for the do-it-yourself types.
Difficulty: Average
Time Required: Instantaneous
Here's How:
1. This is so easy! Add chunks of dry ice (solid carbon dioxide) to hot water in a styrofoam or other insulated container.
2. The fog will sink to the ground. You may use a fan on a low setting to move your 'smoke'.
3. The water will cool, so you will need to refresh the hot water to maintain the effect.
4. Room temperature matters - you will get the most fog in a cool room. Have fun!
Tips:
1. Dry ice is cold enough to give frostbite. Wear protective gloves when handling it.
2. Larger chunks of dry ice will last longer than smaller ones.
3. Be aware that extra carbon dioxide is being added to the air. Under some circumstances, this can present an asphyxiation hazard.
4. Sometimes inexpensive dry ice machines are available, otherwise check party supply stores and shipping companies for availability.
5. Keep dry ice away from childen, pets, and fools! Adult supervision is required.
What You Need:
* Dry Ice (Carbon Dioxide)
* Hot Water
* Insulated Container
More How To's from your Guide To Chemistry
Suggested Reading
Chemistry of Smoke Machines Carbon Dioxide Structure How Things Work Home Experiments Weird Science
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