A little more basic physics:

The highest possible concentration of a salt water solution is 23.3%. Any
higher and the salt starts precipitating out. At that concentration the
freezing point is -6F.

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com

"Cliff" wrote in message
...
On Mon, 26 Sep 2005 14:26:49 -0400, Kirk Gordon
wrote:

If the same salts are disolved in less water, the salt concentration
goes up, and freezing temps are reduced to even more extreme values -
WAY below 32F.

Actually, you may recall that below a certain temp they stop
salting the roads. No matter how much salt they might use it
would cause no melting.
--
Cliff