Is it true that isopropyl alcohol loses its strength if you leave the top off?!


Question: That's what some people say. Like coke loses its acidity if it's uncovered for a certain period of time.


Answers: That's what some people say. Like coke loses its acidity if it's uncovered for a certain period of time.

It loses its strength and it evaporates. Plus germs and other things can get in the bottle.

The alcohol is highly volatile. You'll be left with the water very quickly.

Yes it'll become very watery and not be as strong.

Close. IPA evaporate rapidly. It will evaporate if the top is left off.
It iwll also molecularly seperate (dilute) itself. It alters it's states when exposed to the air and left at room temperature. The best way to store it is keeping it cool and the lid on.
I work with 93-99% IPA regularly so I have some experience.

i think it would be





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