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Topic: Hydrogen Peroxide  (Read 50656 times)

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Offline Scratch-

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Hydrogen Peroxide
« on: April 05, 2004, 04:01:34 PM »
I read in another post somewhere around here that hydrogen peroxide will explode when mixed with metals. Since I have a pint of it in my chemical storage cabinet I am wondering about its properties (The bottle doesn’t say much and I’ve looked it up on the web) before I do *cough* something accidentally.
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Offline Mitch

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Re:Hydrogen Peroxide
« Reply #1 on: April 05, 2004, 04:10:27 PM »
is it pure peroxide or the hydrogen proxide you can buy at rite-aid?
« Last Edit: April 05, 2004, 04:10:46 PM by Mitch »
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Offline Scratch-

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Re:Hydrogen Peroxide
« Reply #2 on: April 05, 2004, 04:12:46 PM »
It is 3% hydrogen peroxide from publix. I'm guessing I would need to concentrate it for it to become dangerous, so it would be a slow reaction, what would it form?
« Last Edit: April 05, 2004, 04:18:54 PM by Scratch- »
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Offline Mitch

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Re:Hydrogen Peroxide
« Reply #3 on: April 05, 2004, 09:34:23 PM »
yeah, 3% won't do anything fun.
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Re:Hydrogen Peroxide
« Reply #4 on: April 05, 2004, 09:36:10 PM »
How can I concentrate it? According to the bottle hydrogen peroxide breaks down in light and heat.
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Offline Mitch

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Re:Hydrogen Peroxide
« Reply #5 on: April 05, 2004, 09:48:58 PM »
We typically don't elaborate on explosives here.  ::)

If you do become a Chemist, you'll learn the techniques of the trade soon enough.
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Re:Hydrogen Peroxide
« Reply #6 on: April 05, 2004, 09:51:42 PM »
Hydrogen peroxide is used as an explosive? I'm not trying to blow up my garage, I just want to know if I can have a reaction between my 3% solution and a metal.
« Last Edit: April 05, 2004, 09:52:32 PM by Scratch- »
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Offline Mitch

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Re:Hydrogen Peroxide
« Reply #7 on: April 05, 2004, 09:53:21 PM »
only one way to find out. ;)
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Re:Hydrogen Peroxide
« Reply #8 on: April 05, 2004, 09:58:21 PM »
Ahhh... I see where your going. Nothing toxic right? Well that’s kinda a silly question on my part, H2O2 and a metal will probably either form a hydroxide or an oxide right? I'm guessing oxide.
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Offline Donaldson Tan

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Re:Hydrogen Peroxide
« Reply #9 on: April 06, 2004, 05:08:26 AM »
I dont recommend trying this out.. cuz the heat from rxn betw metal and hydogen peroxide may cause the unreacted hydrogen peroxide to break down, giving u a dangerous mixture of hydrogen and oxygen  :o
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Re:Hydrogen Peroxide
« Reply #10 on: April 06, 2004, 05:37:42 AM »
Mn2+ cations catalyse  a vigorous decomposition of hydrogen peroxide to water and oxygen.
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Re:Hydrogen Peroxide
« Reply #11 on: April 06, 2004, 08:52:55 AM »
Well its did and done. I used copper and iron in separate containers, just a small amount. Then I added some 3% peroxide, the iron just bubbled some. The copper, although, seemed to slide right off the surface as soon as I put the H2O2 in, and started bubbling vigorously. Now I have a nearly clear vial with what looks like dust in the bottom, it didn’t even get warm during the reaction.
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Re:Hydrogen Peroxide
« Reply #12 on: April 06, 2004, 11:24:14 AM »
Muhahaha I can get a stronger concentration of peroxide from this light stick here  ;D. I could probably make a nice reaction with this! Lol, actually I don’t want to lose any of my hands/fingers before I even take my first chemistry class.

Although it might work well in my bazooka
<<<
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Offline jdurg

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Re:Hydrogen Peroxide
« Reply #13 on: April 06, 2004, 11:46:45 PM »
Quote from: geodome on April 06, 2004, 05:08:26 AM
I dont recommend trying this out.. cuz the heat from rxn betw metal and hydogen peroxide may cause the unreacted hydrogen peroxide to break down, giving u a dangerous mixture of hydrogen and oxygen  :o

Actually, when H2O2 breaks down in breaks apart into O2 and H2O.  I'm almost 100% certain that it doesn't form hydrogen gas.  What happens when you put a metal in a solution of hydrogen peroxide is that the metal has some ions on its surface which catalyses the breakdown.  If the metal is easily oxidized, it will also react with the oxygen gas and water which is generated.  This may increase the heat which will cause the reaction to proceed even faster, etc. etc. until there's an explosion due to rapid expansion of gasses, not due to a chemical reaction.  
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Offline Donaldson Tan

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Re:Hydrogen Peroxide
« Reply #14 on: April 07, 2004, 03:19:22 AM »
oh yeah.. LOL.. u r right.. made a mistake in my haste..
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