From: Mr Data 21/01/2001 22:11:32
Subject: Breathable Liquid post id: 212047
I remember seeing a type of liquid that has similar properties to oxygen and CO2, in that it can be used as a substitute for normal oxygen, and when inhaled it encourages the lungs to relax enough to open the airways and maximise oxygen absorbtion. Can anyone give me some more details?
What is this liquid called?
How is it created?
What are some other uses?

Any help will be appreciated.


From: Ordinary Person ® 21/01/2001 22:41:05
Subject: re: Breathable Liquid post id: 212080
PFC (perfluorochemicals, or perfluorocarbon compounds).

Patients Breathing Liquid in UMC Intensive Care Unit




From: nomad 21/01/2001 23:03:16
Subject: re: Breathable Liquid post id: 212099
It is possible you saw this in the movie "THE ABYSS". It is also a real substance though, used primarily for medical purposes but also usable for diving.



From: Graeme 21/01/2001 23:32:41
Subject: re: Breathable Liquid post id: 212144
Many, many years ago I read an article in Scientific American about liquid breathing.

Now this is pretty hard to remember, but I think it was water very heavily 'dosed' with oxygen. An experiment was carried out on an anaesthetised animal (a pig?).
I think it also mentioned a that because water is not compressible, that a water breathing astronaut in a water-filled capsule could virtually survive a high speed crash landing without a scratch. I could be way out on that one.


From: Dropbear ® 22/01/2001 10:23:49
Subject: re: Breathable Liquid post id: 212315
If water is non compressible, then it would not offer any 'buffer' to a high speed crash, and I would have thought that it would be next to useless.



From: Graeme 23/01/2001 15:54:42
Subject: re: Breathable Liquid post id: 213221
> If water is non compressible, then it would
> not offer any 'buffer' to a high speed crash

Dropbear
Maybe that is the whole point!
A buffer will slow down and stop the 'front' of a moving person and the 'back' will be cushioned and brought to a a stop by the 'front'.

In a high speed crash the 'front' will not be able to absord the energy and the 'back' will crash through the 'front' killing the person.

Assume a person is immersed completely into a "water-breathing" environment inside a capsule.
If that capsule crashes at very high speed, the water cannot be compressed which means it cannot move within the capsule nor can anything immersed in the water ie the person. Therefore the person sustains no injury.

Frankly, I don't have a clue whether that makes sense or not. The person may die but I don't think his body will be shattered.


From: Chris 25/01/2001 10:11:31
Subject: re: Breathable Liquid post id: 214175
There is one particular liquid that goes by
the name of Perfluorotributylamine, whose
chemical formula is (excuse lack of subscripts)
(C4F9)3N. It can store approximately (I think)
50% either by weight or volume (don't have the
reference in front of me, so I'm doing it by
memory) of Oxygen. It has been used successfully
as a 25% emulsion (mixed with water and chemical
to get it to mix with the water) used in an
experiment to replace 70% of a dog's blood.

If it can be shown to be acceptably (temporarily)
used, it could become usable as artificial blood
for humans.

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