Dehydration of alcohols ??catalyst
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Dehydration to alkenes -
Because the elements of water are removed, this reaction is called a dehydration. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.
The acid catalysts normally used in alcohol dehydration are either concentrated sulfuric acid or concentrated phosphoric (V) acid, H3PO4. Concentrated sulfuric acid produces messy results. Sulfuric acid also reacts with the alcohol to produce a mass of carbon.
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