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How do you separate water from salt?

Updated: 8/16/2019
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16y ago

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AnswerEvaporation - put it on the radiator or something hot, then the water will evaporate and leave the salt behind, there, problem solved. (Do not put in hot water, though!)
The usual laboratory method would be to vaporize the water off from the solution, then condense the water vapor formed in a vessel free from salt. On a large scale, to provide drinking water from sea water, for example, it is more economical in terms of energy consumption to use reverse osmosis, but the capital cost is high.
First of all, boil the water for some time until water evaporates. Now, you will see that water has evaporated in the form of water vapors and the salt is left behind. This is how we can separate salt from salt water.
If you boil salt water, then salt will be left and the water will be in the air or will have condensed into water on a surface. If you want the water then you should follow the same steps to make distilled water.

Get a large pot and set it over the stove or a flame. Fill it half full with water. Insert a bowl in the pot that will float in the water. Take the lid of the pot and turn it upside down so the concave side is facing up. There has to be a hot-cold barrier, so fill the upside down lid with ice. Now, boil the water and eventually water vapor will rise from the water, condense into a liquid on the lid, and drip down into the bowl. You now have fresh, distilled water.

Solids don't evaporate because they have a fixed shape/volume, so when you boil salt water, the water evaporates but the salt gets left behind.

To do this in a science lab you could use a Bunsen burner to boil water.
Boil the water out of the solution the water will evaporate and the solid;salt will remain at the bottom but still soggy.

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10y ago
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Q: How do you separate water from salt?
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Related questions

Will a hot plate separate salt water?

A hot plate will separate salt water.


How we separate salt from salt water?

Evaporate the water.


How were you able to separate the salt from the water?

In order to separate salt from water, you need to boil the water. Once all of the water has evaporated, the salt will be at the bottom of the container the water was boiled in.


Can you used filtation to separate salt?

No, it cannot separate salt from a salt solution. This is because salt is soluble in water.


What equipment can be used to separate salt water?

To separate salt water into salt and fresh water you can use:a distillation apparatus, ora reverse osmosis process


What will happen when you separate salt from salt water?

You will have some salt and some fresh water.


How do you separate dry salt from salt water?

Evaporating water dried salt is obtained.


What process did you use to separate salt from water?

A common process one can use to separate salt from water is distillation.


How do you separate water from a salt and water solution?

You boil the salt water so the water evaporates, leaving salt.


Does salt water separate when frozen?

When a mixture of salt and water freeze, the two substances will not separate. The mixture will just become frozen salt water.


Can salt water be made from salt and water?

Yes. Saltwater can be made from a separate salt and water solvent.


How would you separate the components of a glycerol table salt and water solution?

Boiling off the water from a salt solution will separate the solid salt and water (which can be collected by a condenser).