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Topic: Boiling Point of Organic Mixture  (Read 3687 times)

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Offline Sis290025

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Boiling Point of Organic Mixture
« on: December 06, 2006, 08:52:08 AM »
If one has a mixture of borneol (standard bp: 210 C) and verbenone (standard bp: 227.5 C), would the mixture's boiling point theoretically be the average of the two (218.75 C), or is there something else I have to take into consideration (vapor pressure)?

Thanks for any help.
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Offline mir

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Re: Boiling Point of Organic Mixture
« Reply #1 on: December 06, 2006, 04:31:35 PM »
Quote
or is there something else I have to take into consideration (vapor pressure)?
Are the liquids miscible?
Do they form an azeotrope?
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Offline Custos

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Re: Boiling Point of Organic Mixture
« Reply #2 on: December 06, 2006, 07:26:11 PM »
A mixture of two miscible liquids should start to boil at (or very near) the boiling point of the lowest boiling liquid. That's the essence of separation by distillation.
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