Demonstration with Iodine and a product of paraffin on programme

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Offline cookaburra

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On BBC Breakfast TV this week there was an experiment that I didn't see but was reported to me by a non-scientist involving the reaction of a powder with a what I presume was an alkene that produced Iodine as a vapour.  I am a technician in a secondary school and would like to try this as it was apparently quite impressive.  Can you tell me what it was?

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Offline RD

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The item may have been a promo for the BBC TV science series "bang goes the theory" ... http://www.bbc.co.uk/bang/
« Last Edit: 11/06/2010 10:31:42 by RD »

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Offline mcjhn

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is it this one?

aluminium and iodine

http://www.youtube.com/watch?v=N5h5ohd8298

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Offline Bored chemist

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Rather more likely to have been the reaction of iodine with turpentine.
Please disregard all previous signatures.

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Offline iwannabeavet

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It was probably iodine and turpentine. You pile iodine crystals or iodine powder, if you prefer, onto a lab table and smother it with liquid turpentine, which causes an impressive purple smoke cloud to billow into the classroom. The smoke stings a little so it is best done under a fume hood.