If I have a mixture of sugar and salt

Chemistry
Tutor: None Selected Time limit: 1 Day

Jul 28th, 2015

Thank you for the opportunity to help you with your question!

If it is a dry mixture, then you can use 100% alcohol which will dissolve the sugar, but not the salt (which can be filtered off).  The alcohol has to be evaporated to yield the sugar.

If they are mixed in water, then you could try reducing the volume by boiling, but not too long in case one or other comes out of solution.  Addition of an excess of acetone to the solution shouldl precipitate the salt, which can be filtered off.  Evaporation of the acetone will yield the sugar.  An alternative is to mix vigorously with toluene, which will dissolve the sugar but not the salt, and separate the layers using a separating funnel (as the toluene does not mix with water).


Please let me know if you need any clarification. I'm always happy to answer your questions.
Jul 28th, 2015

Thank you

Jul 28th, 2015

Thank you

Jul 28th, 2015

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Jul 28th, 2015
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Jul 28th, 2015
Dec 10th, 2016
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