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Text 5224, 50 rader
Skriven 2007-08-10 08:37:52 av Björn Forsström (2:203/614.61)
   Kommentar till text 5217 av Ross Cassell (1:123/456)
Ärende: CO2
===========

 DD>>> Oxygen ain't real good for you in too higher concentration either.

 RC> Oxygen is a Oxidant..

 RC> Look what it can do to Iron.

Even in 100% oxygen? Don't you have to have other components as well?

 BF>> But not as dangerous as CO2.
 BF>> From my gas-handbook:

 BF>> The risks with CO2 is:

 RC> Your breathing mechanism is stimulated by that gas as well.

Oh. Isn't that controlled by the brain? I know that if you inhale NO2 that
reflex
is blocked and you will die and then we're talking about ppm. Not %.

 RC> Too much Oxygen saturation in the bloodstream leads to hyper-ventilation.

That was not in my hand book.

 RC> 12 years ago, I was injured on the job, had a bundle of shelving uprights
 RC> fall over and hit me, darn near killed me. I had a crescent shaped gash on
 RC> my forehead, with a considerably large flap of skin, they stitched it shut
 RC> but they were fearful I would lose that flesh and skin that was part of
 RC> that flap.

Sorry to hear that.

 RC> So for the next 10 days, I went each day for a 90 minute session in a
 RC> hyperbaric oxygen chamber at 1.5 atmospheres of pure Oxygen. The idea was
 RC> to saturate my body with enough Oxygen to give the healing process a boost
 RC> and to save the flap. At 30 minute intervals I was told to put on a
 RC> breathing mask and I would be breathing in outside air ( I dont know what
 RC> mechanism accounted for the pressure differences, but the process was
 RC> meant to prevent O2 poisoning)

THAT was in my hand book. Oxygen under pressure is more dangerous than oxygen
at atmosphere pressure.

 RC> It was a partially successful procedure as I only lost the outer edges of
 RC> the flap.

It's amazing what they can do.

---
 * Origin: . (2:203/614.61)