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Original Message
RE: Dry ice is nowhere near absolute zero. -109ºs F vs -460º F.
Posted by alan m. kafton on August 12, 2012 at 16:06:28:
Norm....you meant to say -196C., not F. The equivalent in Fahrenheit is -320F.
But you are so correct regarding "differences in cryogenic treatments". Most facilities cannot achieve more than -295F. or -300F. on their best day. There are only a few that achieve the boil-off point of LN2, which is -320.4F. Cryogenics International, the facility I use, is one of them.