Reducing Permanganate and Dichromate with Sulfur Dioxide
When purple permanganate solution is poured into sulfur dioxide, the permanganate is reduced to nearly colorless manganese(II) ions, and the sulfur dioxide is oxidized to sulfate ion. When dichromate solution is added to this colorless solution, the sulfur dioxide reduces the yellow dichromate to green chromium(III) ion, while the sulfur dioxide is oxidized to sulfate ion.
The size of the movie file is 2 MB and its duration is 28 seconds. The name of the movie file is "SO2PR3.MOV" and it is located in the folder "MOVIES/SO2PROP".
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