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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Re: dry ice for freezing things? posted by ScottFW on June 19, 2001 at 17:50:04:
I just have to echo Scott's comments. Ethanol would be ideal but isopropanol (rubbing alcohol) should work too. I would also agree that you really will need to submerge the cables (in their bags I suppose) in the bath. You will also need to get as much air as is absolutely possible out of the bags as air is a great insulator (that is a big part of the principle behind your styrofoam cooler of course). Just stuffing the bags in a cooler with dry ice will be MUCH less efficient than using a dry ice/alcohol bath.Like Scott this is based on lab experience and not on anything relating to audio. I'm not a grad student (I'm a banker) but I actually started down that road way back when.
Also the comment below about first refrigerating then freezing in a normal freezer then into the dry ice is similar to what we used to do freezing down mammalian cell lines: First into the -20C freezer (normal freezer) then into the dry ice/EtOH bath and into the -80C freezer (similar temp to the dry ice bath if I recall) then once they had stabilized at that temp into the Liquid Nitrogen.
Good luck
Jecopo
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- Re: dry ice for freezing things? - Jecopo 09:31:04 06/20/01 (0)
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