name: Combustion of acetone with decomposition of chromium oxide
Chromium Trioxide (FAIL) - Periodic Table of Videos
Оксид хрома и ацетон - химические опыты
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4 CrO3 → 2 Cr2O3 + 3 O2
C3H6O + 4 O2 → 3 CO2 + 3 H2O
- Put 1 gram of chromium oxide in a mortar using a spatula.
- Then, pour a few milliliters of acetone.
- Ignite the acetone using matches or a lighter. Quickly move away.
- Watch intense burning or explosion of the reaction mixture
Chromium oxide is an unstable compound and a very strong oxidizing agent. Decomposition of chromium trioxide leads to the formation of chromium oxide(III) and oxygen under the action of heat generated by the combustion of acetone. Oxygen, in turn, supports the combustion of acetone, making it more intense, ultimately leading to an explosion.