Gummy bears vigorously burn in a test-tube
name: Sugar contained in gummy bears reacts with molten potassium chlorate
Don't Try This at Home - 1 - Potassium Chlorate and Gummy Bear
Вулкан в колбе - реакция уничтожения мармеладных конфет!
Potassium Chlorate and Gummy Bear
"Gummy Bear Experiment" with molten Potassium chlorate
Giant Gummy Bear Fireball!
Potassium Chlorate vs. Big Gummy Bears
Wear eye protection and lab gloves.
There is a serious fire risk - a fire extinguisher should be ready. Make sure there is nothing flammable nearby.
Keep away from the tube during the reaction.
Always follow general safety
recommendations. Please note that conducting chemistry
experiments you must comply with the relevant legal procedures in
2KClO3 → 2KCl + 3O2
C12H22O11 + 12O2 → 12CO2 + 11H2O
- Put a few grams of potassium chlorate into a test-tube.
- Heat the test-tube with a burner until potassium chlorate fully melts.
- After this drop a gummy bear (gelatin candy) into the test-tube.
Potassium chlorate undergoes thermal decomposition and produces an excess of oxygen. The gummy bear mostly consist of sucrose which is ignited by oxygen from potassium chlorate. Other organic components of the gummy bear (i.e., gelatin) also undergo oxidation. Much heat is produced in these reactions, the thermal decomposition of potassium chlorate continues, and we observe a bright flame and explosions in the test-tube. Because of potassium the flame is painted in a pink-purple color.
Molten potassium chlorate reacts similarly with a wood stick, if it is dropped instead of the gummy bear.