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Testing NaOH purity?

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beaver:
Is there an easy way to test 50%NaOH for purity?



Edit: edited title for better indexing. Mitch

Scratch-:
If its 50% NaOH don't you already know its purity?

gregpawin:
Do you mean for trace elements?

beaver:
LOL!  I am asking bc in a lab experiment we used what was thought to be 50% NaOH but it was found not to be bc nobody's experiement worked except for those that it took it straight out of the NaOH bottle.

Mitch:
Just do a titration. And I don't want to hear any complaining, I had to do an air sensitive titration, and I did it under an hour it's no big deal. :P

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