Flaming jelly

Prepare flaming jelly

Scientific name: Prepare flaming jelly using antacid, vinegar and alcohol

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Safety

Wear eye protection and lab gloves.

Make sure there is nothing flammable near the ignited jelly.

There is a fire risk - a fire extinguisher should be ready.

Always follow general safety recommendations. Please note that conducting chemistry experiments you must comply with the relevant legal procedures in your country.

Reaction formula

CaCO3 + 2CH3COOH → Ca(CH3COO)2 + H2O + CO2

2C3H7OH + 9O2 → 6CO2 + 8H2O

Step-by-step instruction

  1. Crush some antacid tablets into a powder.
  2. Add 10 ml of vinegar per tablet to the powder.
  3. Allow the mixture to evaporate until the volume reduces by half.
  4. Mix obtained calcium acetate slurry with an alcohol (methanol, ethanol or isopropanol), stir it. A white jelly is formed.
  5. Put some of the formed gel onto an incombustible plate and ignite it.

Scientific background

Use an antacid which contain at least 1000 mg calcium carbonate per tablet for this experiment. Calcium carbonate reacts with vinegar (acetic acid) and forms calcium acetate. Calcium acetate is insoluble in alcohols, but soluble in water. When mixed, the saturated water solution of calcium acetate and the alcohol form the flammable jelly.

Danger:
Coolness:
Difficulty:

Published on 10 June 2015

  • Fire
  • Heating with fire
  • Explosion
  • Poisoned gas
  • Organic
  • Electricity
  • Solution
  • Oxidation reduction
  • Color change
  • Precipitate
  • Gassing
  • Catalyst