Breathable Oxygen from MnO2 and H2O2

If concentration of H₂O₂ you want to store is not excessive, you could use potassium permanganate instead of manganese dioxide to yield more O₂

thanks

what is the procedure used ?

is the KMnO4 mixed with water and MnO2 at the same time ?

You won't need any MnO2 if you use KMnO4...MnO2 will be one of the things produced...

http://cr4.globalspec.com/search/sitesearch?do=show&sort=textmatchrank&srch=breathable%20oxygen&order=asc

The Apollo astronauts breathed ≈100% oxygen at 1/5 atmosphere pressure.

Something like an oxygen candle is the emergency backup of the International Space Station. This Wiki article tells a little bit about it.

Or, are you stuck with MnO₂ and H₂O₂?

thanks but looking for something cheap that can be produced in large volume and distributed in third world countries if need arises , along with a water and food ration pack

i read the other thread link posted above

not stuck with MnO2 , anything cheap , reliable , transportable with a long shelf life ( 10 years plus )

thanks

Is there a lack of breathable air in third world countries, then?

list all the scenarios you can think of that would cause a loss or deterioration of breathable air ?

nuclear weapons stupidity affecting " air quality "

terrorist attacks using germ warfare or biological weapons

i can think of 4 more obvious ones but if you want to be smart assed about it why dont you show us how smart you are and list a few yourself ?

:)

There are better chemical oxygen generators than hydrogen peroxide. Just review some of the chemical O2 devices used in mines, submarines and space exploration.

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You would also probably want to use a CO₂ scrubber in conjunction.

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As a means of providing breathable air during and after a biological or radiological attack or accident; a system for filtering outside air could be cheaper, more robust and work longer than chemically generating O₂ and scrubbing CO₂.

a system for filtering outside air against what kind of chemical or element ?

excuse me mister terrorist , what kind of chemical will you be using in your next attack ? :)

if you dont know what chemical type you need to filter , then you dont know what type of filter is required

my thinking is therefore that rather than trying to filter outside air sources , then its better to produce oxygen in an internal sealed environment.

Plastic sheeting can be manufactured so it clips together like a zip lock bag or just taped together with duct tape , if a one week supply of oxygen can be produced from chemicals that could be enough to survive a chemical attack or other incident

i like your idea of a scrubber too as a way to significantly extend environmental air supply

Germ warfare/biological attacks and nuclear foolishness were specifically mentioned. My response indicated it was tailored to those specifics.

True HEPA filtration should provide significant protection against most breathing threats that fall into the classifications above. Additionally true HEPA filtration should work for large molecule chemical agents. Small molecule chemical agents would require activated carbon impregnated with reactive chemicals tailors to meet those needs.

What type of barrier do you envision being established to keep the people only breathing the safe atmosphere? How effective could it be? How effective does it need to be?

How long will it take to erect such a barrier? How much time after warning will they have?

Well, that information was due at the original posting!

Once again, the forum has a trickle-feed of information towards the end objective, leading CR4 readers in every which way apart from the direction that is needed. What a complete waste of time.

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Where are thrid world countries supposed to find <...MnO2 and H2O2...>?

Look at Navy OBA's (Oxygen Breathing Apparatus). They are being replaced. All NATO navies used them. There should be plenty available as surplus. They had a shelf life of years, were easy to use.