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Hand sanitizer?

by | earlier

Rubbing washless hand sanitizer into your hands causes your hands to cool down. Why?

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db is right. The alcohol (ethanol) is very volatile. When it vaporizes heat from your hand changes the phase of the alcohol. The heat from your hand leaves just the same way heat from your body leaves when you when you sweat.
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The alcohol in it uses the heat in your hands to evaporate.
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