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   DIR Return to: Organic Laboratory Chemistry
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       #Post#: 14--------------------------------------------------
       Lab Preparation of Ethene.
   DIR By: Michel
       Date: March 7, 2012, 5:03 pm
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       How do you prepare ethene in your lab?
       This is general
       C2H5OH+H2SO4--->C2H4 +H2O
       Sulphuric acid being a dehydrating agent.
       Do you know of any other routes? Share, tell of other methods of
       ethene synthesis
       #Post#: 880--------------------------------------------------
       Re: Lab Preparation of Ethene.
   DIR By: chemistry
       Date: October 13, 2012, 10:13 am
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       Dehydration of alcohols using aluminium oxide(Al2O3) as catalyst
       1. The dehydration of ethanol to give ethene
       This is a simple way of making gaseous alkenes like ethene. If
       ethanol vapour is passed over heated aluminium oxide powder, the
       ethanol is essentially cracked to give ethene and water vapour.
       C2H5OH --->C2H4 +H2O
       Al2O3 used as catalyst
       It wouldn't be too difficult to imagine scaling this up by
       boiling some ethanol in a flask and passing the vapour over
       aluminium oxide heated in a long tube.
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