RE: Agar and heat

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From:Abizar Lakdawalla <>
To:'Donna Sitrin' <>,
Content-Type:text/plain; charset="iso-8859-1"

agar melts at 80-90C but solidifies at 45-50C.

-----Original Message-----
From: Donna Sitrin []
Sent: Wednesday, April 12, 2000 4:21 PM
Subject: Agar and heat

I was asked by a curious tech today, the following:

How come the agar used in the cell blocks does not become liquid again in
the heated chemicals in the processor.  Why does it keep it's shape?

We melt agar down in order to use it in making a cell block, and when it
cools, it solidifies.  Why doesn't it melt and cause the loss of cells
when it is heated in the processors?  Why does it stay solid?

Any who would like to, please reply.

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