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I am doing a presentation about the reaction between alkenes and concentarted sulphuric acid. Please may you tell me what the observations of the experiment are as I cannot find them anywhere.
010208

Corrie writes.....
 
One reference I have found says that the liquid (alkene) is slowly absorbed by the sulphuric acid in an exothermic reaction, with no other visible observations. It probably depends on exactly how you do it. My own experience (with cyclohexene) in practical classes is that the reaction can be quite vigorous, with some charring and bubbling occurring to give a brown, sticky mixture. No doubt there are side products as well as the expected addition to form a hydrogensulphate of the alkene.
 

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updated: 01 February 2008

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