I love it when the news media become suddenly and arbitrarily mesmerized by cool chemistry. Slashdot and Wired Science are reporting on the Happy Reaction (aka the Iodine Clock reaction), which converts triiodide to iodide and vice versa in the presence of starch. The equilibria oscillate, so that the solution starts out clear and when triiodide reappears BAM! Blue color. Wired science has a cool video of the process, although I suspect it’s time lapsed.
Next post: results of mechanism calculations on HCN CNH conversion!