28 Jun
2006
28 Jun
'06
2:48 p.m.
From: John Foust <jfoust at threedee.com>
At 05:11 PM 6/16/2006, Tony Duell wrote:
It depends on how the vacuum was produced, no? Making a low
vacuum with mercury might result in a fair amount of
highly regulated mercury vapor in the "vacuum."
Hi
The amount of mercury in a vacuum is no more than the same volume of
air with exposed mercury in it. The partial pressure is the same. If it is
greater,
the mercury will condense out. Of course if you heat the mercury, you can
increase the partial pressure.
Dwight
Do you
have to pay a "hazardous waste disposal fee" when you let the
vacuum out?
No. In fact as a small amount of polution goes into the device in place
of the vacuum, they should be paying you.