Footage shows the stunning moment a dynamic colour shift from an iodine clock reaction was captured in China. University students conducted a chemical kinetics experiment by adding three distinct ...

This sequence of color changes will repeat with a period of approximately 15 seconds at 25 oC. The reaction last about 5 min. This reaction can occur by a radical process which is turned on when I- ...

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The oscillation continues with an initial period of about 20 seconds at 20 oC and continues for approximately 10 minutes. The overall reaction is usually given as: 3CH2(COOH)2(aq) + 4BrO3–(aq) → ...