how we seprate sugar and common salt powder from mixture
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➡You can separate a mixture of Salt and sugar by mixing it with alcohol which then yields salt and you filter the remaining solution to get the sugar. To separate the salt and sugar, first you have mix the salt and water in the alcohol through filtration and then you use evaporation to separate the salt and sugar
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HOMEWORK HELP > CHEMISTRY
How could I separate a mixture of salt and sugar?
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Expert Answers
CAMBTONE | CERTIFIED EDUCATOR
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).