From: Paul Dietz <email@example.com>
Subject: Re: TOO CHEAP TO METER
Date: Sat, 21 Nov 1998 04:14:59 +0000
"Steven B. Harris" wrote:
> What, out of curiosity, is the lowest temp at which lead/bismuth
> alloys remain liquid?
The binary eutectic of Pb/Bi is 44.5% Pb/ 55.5% Bi (by mass)
and melts at 124 C.
Pb/Bi/Sn ternary eutectic (32.0/52.5/15.5) melts at 95 C.
There are lower melting point mixtures with cadmium,
(Wood's metal, for example, mp 70 C), but cadmium's
high vapor pressure would, I think, rule it out.
For comparison, sodium melts at 98 C; Na/K eutectic
melts at -11 C. And Cs/K eutectic melts at -48 C
(lower than mercury.)