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Gary SonofWilliam's avatar

Another great post, Graham! Quite useful to me, too. Just in case.

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HardeeHo's avatar

Just for reference Hydrogen Peroxide can't be stored easily. It loses ~ 1%/year after production and there is rarely a production date. You can estimate strength by smell and taste - if you can't detect the proper odor, likely too old. The 10% solutions are not particular safe but obviously last longer in the bottle. I doubt we can know the real strength of our bottles so we can dilute properly.

See https://www.youtube.com/watch?v=fDQIEUQjjwM/ or https://www.quora.com/How-do-you-test-hydrogen-peroxide-at-home or https://www.quora.com/What-is-the-shelf-life-of-a-brown-plastic-bottle-of-hydrogen-peroxide-before-and-then-after-it-is-opened.

Nice to think of options, hope they will not b needed.

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