Iodine Clock Reaction


A solution of hydrogen peroxide and sulfuric acid is added to a solution containing iodide ion, thiosulfate ion, and starch. After some time the dark blue color of a triiodide-starch complex is observed. The influences of initial reactant concentrations on the reaction time are examined, as are the influence of volume and temperature.
Contents
The Clock Reaction: Video   
(Movie/Animation (1))
Effect of Acidity   
(Movie/Animation (1))
Effect of Iodide   
(Movie/Animation (1))
Effect of Peroxide   
(Movie/Animation (1))
Effect of Volume, Same Concentrations   
(Movie/Animation (1))
Effect of Temperature   
(Movie/Animation (1))
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