Iodine Clock Reaction
Iodine Clock Reaction: Classic kinetics demonstration; sudden colour change. Step-by-step mechanism, reagents and practice.
What happens
Classic kinetics demonstration; sudden colour change.
Reaction summary
IO₃⁻ + 5I⁻ + 6H⁺ → 3I₂ + 3H₂O
Reagents and conditions
- Starting material: KIO₃; KI; H₂SO₄
- Conditions: Acidic aqueous solution
- Products: I₂; H₂O