mericad193724
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Catalysts for H2O2
Hello,
I have been using Manganese Dioxide to catalize the decomposition of H2O2 into water and oxygen. Manganese Dioxide is a problem because it turns water
dark brown even in small quantities. Does anyone know of any other soluble catalysts for H2O2. I read somewhere that salts of certain metals may work.
I would really appreciate some help.
Thanks,
mericad193724
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Maja
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Actually if you will use button "SEARCH" you will find big topic on your subject.
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mericad193724
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Sorry, I should have done a search first.
Anyway...I did a lot of searching and found that Potassium Permanganate and Iodine can act as catalysts, both of which are soluble.
Are there any others?
thanks,
Maricad193724
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unionised
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Blood works though it's not strictly a solution IIRC there's a coblat tartrate complex that works too. What do you want the stuff for?
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UniversalSolvent
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I was wondering the same. Generally with this reaction it seems the goal is to obtain 02 for some purpose; why is the water important?
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neutrino
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Potassium permanganate will react with hydrogen peroxide to form manganese dioxide. If you are concerned about MnO<sub>2</sub>, avoid
KMnO<sub>4</sub>.
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BromicAcid
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As said, use the search engine. There are at least two threads that I can recall but only one that I found within 15 seconds of searching:
https://sciencemadness.org/talk/viewthread.php?tid=4266
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DeAdFX
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| Quote: | Originally posted by unionised
Blood works though it's not strictly a solution IIRC there's a coblat tartrate complex that works too. What do you want the stuff for?
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I hear liver is a good source too(lots of blood go figure). But if you want something goopy as opposed to a liquid then liver might be a better
choice?
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Jome
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Wouln't LOTS of transition metal salts do? Like Cu, Co, Ni, Fe compounds?
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mericad193724
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thanks for the help guys,
I am trying to avoid aything that is not soluble and will strongly change the color of the water.
This is somewhat for a school related project, I use my chemistry teacher's lab for my expeiments after school. Im not making anything dangerous.
I was thinking catalase, the enzyme that makes liver work, could work for me...but my catalyst needs to be a dry powder, I tried veal liver, but I
can't squeeze the liquid and evaporate it, I don't think you can get powdered catalase.
What transition metals will due, can you name some compounds, Ferric Chloride maybe, Zinc Cloride???
thanks a lot,
meriad193724
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Tacho
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Mix manganese dioxide with sodium silicate. Add some acid to make silicagel. Let it dry. Use the large, black, filtrable crystals as your fully
reciclable catalyst.
As described here:
http://sciencemadness.org/talk/viewthread.php?tid=2197
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mericad193724
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hello,
just one more question,
when you get 3% or 6% H2O2 from a pharmacy it says it is "stabilized. " What does this mean, is there some additive that makes it less reactive or
something???
What is the process by which it is "stabilized."
thanks,
Mericad193724
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12AX7
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The ingredients list shows phosphoric acid, I bet. Read labels........
Tim
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Fleaker
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Any halide salt should catalyze the decomposition of hydrogen peroxide, assuming it is concentrated enough. Use potassium iodide for best results.
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