That's the way I read it also. Not surprising really as Mercury melts
at -38degC, but amalgam is solid.

Ivan

> -----Original Message-----
> From: Marshall Dudley [mailto:mdud...@execonn.com]
> I think I just figured out the 10-8.  They mean 10^-8 (10
> raised to the -8 power),
> or .00000001.  That is much lower than the vapor pressure
> of mercury at that
> temperature alone, so apparently the silver lowers the
> vapor pressure of the
> mercury significantly (this is similar to adding salt to
> water will raise the
> boiling point by lowering it's vapor pressure as well).
>
> Marshall
>
>
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