I. The reaction between iodide and hydrogen peroxide produces triiodide. The triiodide ions are reduced back to iodide by thiosulfate at a much faster rate, until the thiosulfate is consumed. Then the ...

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

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I. The reaction between iodate and bisulfite in acid medium produces iodine. Solutions A (iodate) and B (bisulfite) are mixed at room temperature in differing concentrations, producing a blue-black ...

The 'iodine clock' reaction occurs when two colourless solutions are mixed in a conical flask. After a period of time (which varies between several seconds and several minutes) the mixture turns ...

The second assessment involved a practical challenge in the undergraduate wet chemistry laboratory in which teams helped Dr Strange ‘calibrate time with chemistry’ by devising a procedure for an ...