mericad193724
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 121
Registered: 4-6-2006
Location: New Jersey, USA
Member Is Offline
Mood: why do you care?
|
|
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
|
|
Maja
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 143
Registered: 27-2-2006
Member Is Offline
Mood: No Mood
|
|
Actually if you will use button "SEARCH" you will find big topic on your subject.
|
|
mericad193724
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 121
Registered: 4-6-2006
Location: New Jersey, USA
Member Is Offline
Mood: why do you care?
|
|
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
|
|
unionised
International Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 5106
Registered: 1-11-2003
Location: UK
Member Is Offline
Mood: No Mood
|
|
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?
|
|
UniversalSolvent
Harmless
Posts: 17
Registered: 2-6-2006
Member Is Offline
Mood: No Mood
|
|
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?
|
|
neutrino
International Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 1583
Registered: 20-8-2004
Location: USA
Member Is Offline
Mood: oscillating
|
|
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>.
|
|
BromicAcid
International Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 3228
Registered: 13-7-2003
Location: Wisconsin
Member Is Offline
Mood: Rock n' Roll
|
|
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
|
|
DeAdFX
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 339
Registered: 1-7-2005
Location: Brothel
Member Is Offline
Mood: @%&$ing hardcore baby
|
|
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?
|
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?
|
|
Jome
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 154
Registered: 10-6-2004
Location: Soutwest sweden
Member Is Offline
Mood: desiccated
|
|
Wouln't LOTS of transition metal salts do? Like Cu, Co, Ni, Fe compounds?
|
|
mericad193724
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 121
Registered: 4-6-2006
Location: New Jersey, USA
Member Is Offline
Mood: why do you care?
|
|
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
|
|
Tacho
National Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 582
Registered: 5-12-2003
Member Is Offline
Mood: No Mood
|
|
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
|
|
mericad193724
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 121
Registered: 4-6-2006
Location: New Jersey, USA
Member Is Offline
Mood: why do you care?
|
|
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
|
|
12AX7
Post Harlot
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 4803
Registered: 8-3-2005
Location: oscillating
Member Is Offline
Mood: informative
|
|
The ingredients list shows phosphoric acid, I bet. Read labels........
Tim
|
|
Fleaker
International Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 1252
Registered: 19-6-2005
Member Is Offline
Mood: nucleophilic
|
|
Any halide salt should catalyze the decomposition of hydrogen peroxide, assuming it is concentrated enough. Use potassium iodide for best results.
|
|