Footage shows the stunning moment a dynamic colour shift from an iodine clock reaction was captured in China. University ...

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- ...

The overall reaction is usually given as: 3CH2(COOH)2(aq) + 4BrO3–(aq) → 4Br–(aq) + 9CO2(g) + 6H2O(l) The oxidation of the malonic acid by the bromate(V) ions is catalyzed by manganese(II) ions, and ...