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Offlinesplifner180
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H2O2 @ 10%?
    #5568063 - 04/28/06 07:17 PM (17 years, 9 months ago)

I see reference to 10% hydrogen peroxide and 90% water being used frequently in these forums.

My H2O2 is 3% which I guess is pretty much standard. How do I achieve this 10% solution? Am I mixing one part of H2O2 to nine parts of H2O or does the fact that the H2O2 solution is only 3% to begin with factor in?

tia - splif


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OfflineFestivus
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Re: H2O2 @ 10%? [Re: splifner180]
    #5568264 - 04/28/06 08:05 PM (17 years, 9 months ago)

FYI -- Pretty much the legal standard for domestic use of H2O2 is about 3%, so that's 90% water + 10% of the 03% solution of H202.


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Offlinesplifner180
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Re: H2O2 @ 10%? [Re: Festivus]
    #5568496 - 04/28/06 09:08 PM (17 years, 9 months ago)

That's what I thought (and thanks for adding a reply) but then I really have a 0.3% solution of H2O2. I just want to make sure that this is correct.

I think it is. =)

splif


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OfflineRogerRabbitM
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Re: H2O2 @ 10%? [Re: splifner180]
    #5568541 - 04/28/06 09:19 PM (17 years, 9 months ago)

Unless you're trying to kill cobweb mold. In that case put the 3% peroxide full strength into your mister and spray the cobweb directly. Try to avoid any pins if they're present.
RR


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OfflineFestivus
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Re: H2O2 @ 10%? [Re: RogerRabbit]
    #5568650 - 04/28/06 09:43 PM (17 years, 9 months ago)

Aye, you'll end up with a 0.3% H202 content, which is what you're aiming for.

If you're squirting some cobweb directly, then do as RR said and just blast it with the full 3%. 0.3% works great for preventative measures though.


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Offlinehomusubi
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Re: H2O2 @ 10%? [Re: Festivus]
    #5569823 - 04/29/06 09:04 AM (17 years, 8 months ago)

:S

how much must the the H2O2 concentration, to make peroxide agar??

because i was reading the FAQ, and they make me confuse...


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