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splifner180
Student


Registered: 03/24/06
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H2O2 @ 10%?
#5568063 - 04/28/06 07:17 PM (17 years, 9 months ago) |
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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
-------------------- First Grow: Ecuador -> LC -> HPoo/Straw -> Monotub Build a Do-It-Yourself Magnetic Stirrer in thirty minutes with no money.
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Festivus
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Registered: 03/24/06
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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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splifner180
Student


Registered: 03/24/06
Posts: 1,288
Loc: USA, East Coast
Last seen: 1 year, 3 months
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Re: H2O2 @ 10%? [Re: Festivus]
#5568496 - 04/28/06 09:08 PM (17 years, 9 months ago) |
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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
-------------------- First Grow: Ecuador -> LC -> HPoo/Straw -> Monotub Build a Do-It-Yourself Magnetic Stirrer in thirty minutes with no money.
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RogerRabbit
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Registered: 03/26/03
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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
-------------------- Download Let's Grow Mushrooms semper in excretia sumus solim profundum variat "I've never had a failed experiment. I've only discovered 10,000 methods which do not work." Thomas Edison
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Festivus
Resident Lurker


Registered: 03/24/06
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Last seen: 15 years, 1 month
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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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homusubi
Curious Noob =P


Registered: 04/09/06
Posts: 94
Loc: Concepcion, Chile
Last seen: 13 years, 10 months
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Re: H2O2 @ 10%? [Re: Festivus]
#5569823 - 04/29/06 09:04 AM (17 years, 8 months ago) |
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:S
how much must the the H2O2 concentration, to make peroxide agar??
because i was reading the FAQ, and they make me confuse...
-------------------- "Entonces, mientras camines por esta tierra, Tu y tus hijos abrazar?is las Tinieblas, beber?is s?lo sangre, comer?is s?lo cenizas, ser?is como fuisteis en el momento de morir, nunca muriendo, siempre viviendo. Caminar?is para siempre en las Tinieblas, todo cuanto toqu?is se desmoronar?, hasta los ?ltimos d?as".
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