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Old 07-14-2007, 06:53 PM #64
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LOL! Let me know how it works out. I'm not that far off needing that setup for real with a T fitting to go to my nose as well as the marker....
nice
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Old 08-29-2007, 10:36 PM #65
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you have got to be the biggest pile of idiots, the apollo 1 the cabin atmosphere was pure oxygen and electrical spark caused a fire that killed them all
end of story
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Old 08-29-2007, 10:46 PM #66
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simple answer to this rediculas argument is this.

ever seen a air tank,it says on it WARNING OXYGEN IN USE NO FLAME. it has a RED (flammable) tag .
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Old 08-29-2007, 10:50 PM #67
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Actually ethylene Glycol was what was ignited by the spark. The pressurized pure oxygen just made it burn extremely intensely. Thanks for coming out though.
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Old 08-29-2007, 10:51 PM #68
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i dont know a whole lot about this...
but lets put it this way....

no oxygen=no fire.

and before anyone asks, spaceships carry oxygen for their rockets.
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Old 08-30-2007, 12:44 AM #69
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i dont know a whole lot about this...
but lets put it this way....

no oxygen=no fire.

and before anyone asks, spaceships carry oxygen for their rockets.
Yeah, because there is no oxygen in space. The rocket fuel needs oxygen to burn (the hyrogen, or whatever they use is the fuel).

Your car... gas is the fuel, and the oxygen is in the air.

Welding torch... acetelene is the fuel, and oxygen allows it to burn.

Ionripper, you're the biggest idiot for bringing back a dead thread.
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Old 08-30-2007, 03:02 AM #70
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simple answer to this rediculas argument is this.

ever seen a air tank,it says on it WARNING OXYGEN IN USE NO FLAME. it has a RED (flammable) tag .
yeah. it means don't use a flame because the oxygen will cause the flame to get supermassive. the FLAME is the FUEL for the OXYGEN. give the fire more oxygen, the fire gets bigger, give it less oxygen the fire gets smaller. That's why they say no flame when using oxygen!

as for apollo, you just pwned yourself ionripper.
spark caused FIRE. the oxygen rich air caused the fire to get so much oxygen, that it was able to burn like crazy.
OXYGEN will NOT burn without a FUEL. FIRE will get bigger with MORE OXYGEN. sheesh. this thread needs to be closed.
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Old 08-30-2007, 11:56 AM #71
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Quote:
Originally Posted by Seatbelts View Post
simple answer to this rediculas argument is this.

ever seen a air tank,it says on it WARNING OXYGEN IN USE NO FLAME. it has a RED (flammable) tag .
because if there's pure enough O2 in the atmosphere then anything will burn given the slightest spark. ie, iron will burn like wood in a pure oxygen environment.

oxygen by itself will not burn.

in order for fire you need both oxygen and fuel, not one or the other.
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Old 08-30-2007, 12:03 PM #72
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Yeah, because there is no oxygen in space. The rocket fuel needs oxygen to burn (the hyrogen, or whatever they use is the fuel).

Your car... gas is the fuel, and the oxygen is in the air.

Welding torch... acetelene is the fuel, and oxygen allows it to burn.

Ionripper, you're the biggest idiot for bringing back a dead thread.
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Old 08-31-2007, 10:13 AM #73
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Wow. You guys are all geniuses. There are only two requirements for combustion- Oxygen and an ignition source. Yes, adding pure diatomic Oxygen into things such as Acetylene torches and the V2 rocket does help accelerate the combustion, but the fact that you are missing is that flame is the result of the combustion of atmospheric Oxygen. Don't believe me? Why do you think that if you light a candle in a jar, and then seal off the jar, the fire will go out? Because combustion is the reaction of Organic material that produces only Water (H20) and Carbon Dioxide (CO2). Therefore, since you have Oxygen as a product, it must also be a reactant. For example, for the combustion of Octane (The fuel that runs any gasoline powered car) the balanced reaction is as follows:
1 C8H18 + 25 O2= 8 CO2 + 9 H2O

As you can see, diatomic oxygen is indeed a reactant and is still present in the product side of the reaction, bonded to the Hydrogen to form water.

Anyways, to answer the OP' s question- you will be fine filling the oxygen tanks, so long as you do not exceed the pressure ratings of the tank. Don't know the rating? Do not mess with it. And washing the tanks will not do anything. If you are worried about residual oxygen, the best thing you can do is to just let it air out for a day or two with the valve assembly off. However, to be able to fill an air tank off of it, you will need a fill station set up.

even if that guy is completely wrong ye still manages to sounds smart enougy that no one will challenge him
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Old 08-31-2007, 02:11 PM #74
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I'm not sure you guys realize this, but you guys keep saying the same stuff over and over about oxygen and flamability, without actually discussing the intended topics for the thread.

We all know by now that oxygen without a fuel cannot burn. We also know that fuel without oxygen, again, cannot burn. And also that pressurized oxygen makes fuel burn quicker.

NOW END IT ALREADY

Also, i have a pair of large oxygen tanks. What are your opinions on whether i could get them filled with all the required fittings and tests, etc.?
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Old 08-31-2007, 07:22 PM #75
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I don't think you'll be able to find the right fittings to fill your paintball tank off of oxygen tanks, the only adapters I've ever seen are for scuba tanks and I'm pretty sure they have different style fittings.
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Old 08-31-2007, 08:02 PM #76
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I can not believe people are still trying to fight the belief that oxygen is flammable. This thread has nothing to do with this guys idea anymore but it can be used to classify who is an idiot and who passed chemistry in high school. The funny thing is that these people truly believe the idea of oxygen being flammable and they state scenarios like the idiot who started talking about the Apollo 1 fire, you totally contradicted yourself. You did try and make yourself sound smart but since you failed at proving a point and nothing you said really supported your idea about oxygen being flammable you in turn made yourself sound like a complete idiot. The reason for such a large fire in the Apollo 1 incident was because oxygen is such a good oxidizer making the flames much more intense. If the cabin was not filled with pure oxygen but a normal mixture of air then it would have been a normal flame. But I do not want to see you all stop arguing your false points, keep 'em coming its amusing for the intelligent people to read. Kudos for keeping people amused because thats all you are doing.
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Old 08-31-2007, 09:09 PM #77
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this thread makes me rofl
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Old 08-31-2007, 09:59 PM #78
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Old 08-31-2007, 11:03 PM #79
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how big are said oxygen tanks and what are they made out of? what kind of fittings do they have?
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Old 09-01-2007, 10:03 AM #80
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Why are you guys arguing the point?



Oxygen is not flammable (by definition), and you wont get a fire without fuel. True


Gasoline is flammable (by definition), but you won't get a fire without oxygen. True.

Oxygen MSDS
Gasoline MSDS

See section five, fire fighting information.


I could empty a propane tank into the atmosphere, and until it dissipated and mixed with the oxygen around it (air) to the point that it was an accceptable mxture to burn, NOTHING WOULD EXPLODE.

Conversly, you could dump oxygen into the atmosphere, and until it was mixed enough with some flammable substance, NOTHING WOULD EXPLODE.






Pure oxygen is still a HUGE FIRE HAZARD. Pure oxygen means you have an atmosphere which will burn anything that burns, eventually. And, eventually, just about everything burns.






That said, i'm sure you could safely vent those tanks by opening them a crack and allowing them to drain (away from ignition sources, naturally), just as you could safely empty a propane tank the same way. Once vented, they won't need to be cleaned, they can be put right into service. Unfortunately, i doubt you will be able to fill it without the appropriate fittings for an oxygen bottle (which will likely have overfill prevention and a pin valve and odd threads, like a propane tank).



The above statements are not strictly true. Lithium will burn in a pure nitrogen environment. Point is, fire needs a fuel and an oxidizer, and it's a matter of semantics as to which bit is the flammable bit - both are required, neither is more important than the other. Oh yeah, in high concentrations it's highly poisonous.
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Old 09-01-2007, 12:23 PM #81
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Prove it.
http://www.pbnation.com/showthread.php?t=2325446

Proof that oxygen can cause explosions. Not flammable, but it is dangerous.
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Old 09-01-2007, 05:18 PM #82
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wow my freshman year in highschool we learned that without Oxygen fire wont start. So this making oxygen flamable...
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Old 09-01-2007, 05:59 PM #83
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http://www.pbnation.com/showthread.php?t=2325446

Proof that oxygen can cause explosions. Not flammable, but it is dangerous.
******* did you read the thread at all? even the OWNER said it was OIL in the tank that caused it to explode. the OIL was the FUEL for the explosion. the high pressure inside the tank, caused the oil to explode, much like how a diesel engine works.

yeah, fire won't start without oxygen, but fire won't spontaniously appear in oxygen, there must be something for teh fire to burn. fire needs a fuel, and an oxidizer. Fire is a reaction between a fuel source and an oxidizer, take away the fuel, there becomes nothing for the oxygen to form a reaction with, take away the oxidizer, and there becomes nothing for the fuel to react with.
let's use the exploding tank as an example

Oil is inside a tank filled to 4500psi of atmospheric air (normal air we breath) that means that it's a high concentration of OXYGEN under an immense amount of pressure. that pressure causes the oil to ignite, starting a reaction with the oxygen to form an explosion. (JUST like in a diesel engine)
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Old 09-01-2007, 07:55 PM #84
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if u think oxygen isnt flamable u should get drop kicked in the throat
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