Slush nitrogen. Best way I can think of to make this is get some from the
UW Chem or Physics departments. You should be able to make it from regular
LN2 by pulling a vacuum on it, so far I've failed with a little 28-30" of
Hg type of pump.

Phil

>I was contacted by a researcher looking for a non-flammable substitute
>for Isopentane for snap freezing tissue. Is there anything?
>
>Victor Tobias
>Histology Supervisor
>University of Washington Medical Center
>Seattle, WA

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