How to Inflate a Balloon Using Baking Soda and Vinegar

The balloon is inflated by a chemical reaction.

Scientific name: Baking soda and vinegar react with evolution of a big amount of carbon dioxide.

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Safety

Wear eye protection goggles.

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

Reaction formula

2CH3COOH + Na2CO3 → 2CH3COONa + H2O + CO2

Step-by-step instruction

  1. Using a spatula add some baking soda to the balloon.
  2. Pour vinegar into the bottle.
  3. Fit the balloon on the bottle neck.
  4. Simultaneously drop all the baking soda to the bottle.
  5. The chemical reaction begins. It proceeds with evolution of a large amount of gas.

Scientific background

When baking soda and vinegar come into contact the chemical reaction begins. It produces sodium acetate and carbonic acid. Carbonic acid is very unstable and immediately decomposes to water and carbon dioxide. The released gas inflates the balloon.

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