Formation of haloalkanes from alcohols.

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Last updated 2:29 PM on 6/27/26
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6 Terms

1
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How is haloalkanes made

We heat the ethanol (alcohol) under reflux, with a mixture of sodium bromide and sulfuric acid (50% conc)

We form bromoethane, water and sodium hydrogen sulfate

2
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Whats first stage of halogenation

The sodium bromide and sulfuric acid react together, forming hydrogen bromide and sodium hydrogen sulfaete.

<p>The sodium bromide and sulfuric acid react together, forming hydrogen bromide and sodium hydrogen sulfaete.</p>
3
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Whats second stage of halogenation of ethanol

The hydrogen bromide reacts with ethanol, to form bromoethane and water.

<p>The hydrogen bromide reacts with ethanol, to form bromoethane and water.</p>
4
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How is halogenation a substitution reaction

We substitute OH group of alcohol with bromine atom.

<p>We substitute OH group of alcohol with bromine atom.</p>
5
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How do we separate haloalkane

They are volatile molecules, so distillation can be used.

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