In article , Charlie Morgan wrote:
On Thu, 25 Jan 2007 12:49:40 -0500, krw wrote:

In article ,
says...
On 25 Jan 2007 08:59:39 -0800, wrote:



On Jan 25, 11:25 am, krw wrote:
In article ,
says... In article
, wrote:

Propylene glycol (RV antifreeze) is safer but not cheaper and it won't
get you that -134 degree protection.

You don't get -134 degree protection from ethylene glycol either.Is
-134F protection really needed?? ;-) In any case, even if anti-
freeze freezes it won=3Ft crack a block like water will. Water is
the only material that expands when it freezes.

Are you sure water is the only material? While I agree the vast
majority do shrink, I doubt water is the only one that expands instead.


I believe water is the only LIQUID that expands when it freezes.

I believe it=3Fs unique. Most chemicals/compounds are liquid under
some condition.

There are other materials that expand.

Example?

Some metal alloys expand as they cool. No, I don't know the exact
formulas off the top of my head.

Bismuth, antimony and alloys containing same:

http://www.alchemycastings.com/lead-...ts/fusible.htm

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