Thread: melting Lead
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Tim Williams
 
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Yup. You can get liquid water below 32 degrees, depends on th' saline
content. Think brine tanks or th' Bering Sea.


Well, in the case of salts, those actually cause the melting point to drop
(which, since it can no longer be solid at say 20°F, it melts, hence ice
melter works; the melting and depression of melting point also causes
cooling, hence salted ice for ice cream machines). Same way a little lead
makes tin's melting point drop (the lowest melting point of the system is at
336°F IIRC - a far cry from the 450 or 620°F of either constituent).

And as long as I'm dragging on...
Things will easily freeze up while you move them -- they might not stick
together well though. The motion breaks up bonds between grains of ice (or
whatever) as it forms, making a slush. (Heh, take a look at slushy
machines!)

Tim

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