File:Iodine clock - persulphate.ogv
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Iodine_clock_-_persulphate.ogv (Ogg multiplexed audio/video file, Theora/Vorbis, length 6.0 s, 180 × 144 pixels, 98 kbps overall, file size: 73 KB)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 21:26, 18 June 2009 | 6.0 s, 180 × 144 (73 KB) | TheSmuel | {{Information |Description={{en|1=Video of iodine clock reaction. Potassium persulphate is used to oxidize iodide ions to iodine, in the presence of starch and a small amount of thiosulphate ions. When the thiosulphate is exhausted (by reaction with the |
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