How do you get the salt out of salt water?

Answer 1

Boil the water and collect the steam - that water will be salt free. Boil the water in a partial vacuum and this will be more efficient since this lowers the boiling point.

Reverse Osmosis is another way by getting the salt water to leave the salt molecules on the other side of the membrane. It works like the human gut.

The third way is to use the Sun to heat a pan of salt water with a conical tent of clear polythene above the pan. Pure water condenses on the polythene and runs down to an annular dish surrounding the salt pan.

Answer 2

Some procedures are:

- distillation

- separation with ion-exchangers

- reverse osmosis

- crystallization and recrystallization (for the preparation of salt from sea water)

Answer 3

You can remove salt from saltwater through a process called desalination, which involves either distillation or reverse osmosis. Distillation involves boiling the water and collecting the steam, leaving the salt behind. Reverse osmosis uses a special membrane to filter out the salt from the water.

Answer 4

Evaporating the water crystalline sodium chloride is obtained.