What is the difference between fractional distillation and simple distillation? Watch

FuryBall
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Hello!


Im currently studying for my end of year exams (Im in year 9), and am revising for different separating techniques.
I came across fractional distillation and simple distillation and would like to know the difference and their details.



Thank you!
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KatsuoK
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From what I understand, fractional distillation is where you have a mixture of many things that all have different boiling points, like crude oil, for example, and it's boiled so that the mixture of compounds turn into gases and rise to the top of the column. Depending on their length/weight, the condense at different distances away from the bottom, and so similar length chains are collected together.
I think simple distillation is where you only want to separate the products from the reactants, and it doesn't matter that you're left with a mixture of products.
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FuryBall
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(Original post by KatsuoK)
From what I understand, fractional distillation is where you have a mixture of many things that all have different boiling points, like crude oil, for example, and it's boiled so that the mixture of compounds turn into gases and rise to the top of the column. Depending on their length/weight, the condense at different distances away from the bottom, and so similar length chains are collected together.
I think simple distillation is where you only want to separate the products from the reactants, and it doesn't matter that you're left with a mixture of products.
Thanks for your reply.

I did some more research and found out that the main difference is that simple distillation is the method used to separate substances in mixtures with significantly different boiling points, while fractional distillation is used for mixtures containing chemicals with boiling points close to each other.

Do you/anyone know actual substances with different boiling points and mixtures containing chemicals with boiling points close to each other?

Thank you.
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