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What is distilled water?
- Samantha (age 9)
Distilled water is water that has been boiled and then recondensed
(that is, the water vapor is turned back into liquid water on a cold
People distill water in order to purify it. Dissolved contaminants
like salts are left behind in the boiling pot as the water vapor rises
away. It might not work if the contaminants also boil and recondense,
such as having some dissolved alcohol. Plus, you have to be careful not
to re-contaminate the water after distilling it.
(republished on 07/24/06)
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