Re: SF6



Uncle Al wrote:
Dirk Bruere at NeoPax wrote:
Uncle Al wrote:
Dirk Bruere at NeoPax wrote:
Dirk Bruere at NeoPax wrote:
Thinking of using SF6 in a consumer product.
What problems am I likely to encounter?

Dirk
Also looking for some relatively non-toxic liquid solvent for SF6.
Not to mention adsorbtion info with activated carbon.
Both with an eye to using them as constant pressure reservoirs.
Enviro-whiners. Greenhouse gas.

Dissolves in liquid hydrocarbons. Used as a pressurized gaseous
dielectric in oil-cooled transformers and arc quench in nasty
distribution switches.
Solubility?

Use carbon dioxide (FERMENTATION carbon dioxide!), butane, ammonia,
sulfur dioxide; carcinogenic hydrochlorofluorocarbons... expensive,
shoddy, deadly - the Enviro-whiner trinity.

Will CCl2F2 work?
I'm after a very dense gas with low speed of sound.
Xenon is far too expensive.

SF6 is MW=146, xenon is MW=131.
n-Perfluorobutane boils at -2 C with MW=238.

http://www.fluoros.co.uk/data/medical_applications/perfluorobutane.php
http://www.nicnas.gov.au/PUBLICATIONS/CAR/NEW/NA/NASUMMR/NA0300SR/na317.asp
http://encyclopedia.airliquide.com/encyclopedia.asp?GasID=19

Thanks.
That looks like a real possibility.

Dirk
.



Relevant Pages

  • Re: SF6
    ... Not to mention adsorbtion info with activated carbon. ... Both with an eye to using them as constant pressure reservoirs. ... Dissolves in liquid hydrocarbons. ...
    (sci.chem)
  • Re: SF6
    ... Not to mention adsorbtion info with activated carbon. ... Both with an eye to using them as constant pressure reservoirs. ... Dissolves in liquid hydrocarbons. ...
    (sci.chem)