Re: Sulphur hexafloride

["Michael N. Monce" <mnmon@conncoll.edu>]

On Fri, 10 Jul 1998, Eric T. Lane wrote:

> A physics demonstration personality wants to use sulpher hexafloride to
> demonstrate the opposite of the helium squeeky voice effect.  He breaths
> in a lungfull of SF6 and his voice sounds gruff as he speaks.
>
> His question is where can he get SF6, hopefully reasonably cheaply, or a
> reasonable substitute high density gas that won't harm him.


	We get ours from BOC Gases.  Cheap it is not!  I just paid $1800
(!!) for a cylinder.  Don't know what a lecture bottle is going for.


				Mike Monce
				Connecticut College