RE: Dry ice is nowhere near absolute zero. -109ºs F vs -460º F.

Posted by 6bq5 (A) on August 14, 2012 at 10:23:41

In Reply to: 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:

A little clarification on temperatures - if I may:
Dry Ice - Solid CO2 (carbon-dioxide) sublimates at -78.5 degrees C, or -109.3 degrees F
There is no 'melting point' as CO2 sublimates - goes from a solid to a gas with out spending any time as a liquid.
Nitrogen Melts at -209.86 C( -320.148 F), and boils at -195.8 C (-294.84 F)
Liquid nitrogen is commercially available, and in the liquid form would generate a temperature between the two - usually closer to the boiling point.
Helium has a melting point at -272.2 C (-432.36 F) and a boiling point at -268.93C (-426.474 F). Liquid Helium is commercially available - used to keep NMRs (Nuclear Magnetic Resonance Imaging systems) operating.

Absolute Zero - 0 degrees Kelvin = -273.15 C = -434.07 degrees F

Cold Stuff!
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Follow Ups Full Thread

Topic - Cryoing vs dry ice treatment of CD's - Vasil 17:29:15 08/10/12 (22)

RE: Cryoing vs dry ice treatment of CD's - geoffkait 09:07:54 08/12/12 (18)

RE: Cryoing vs dry ice treatment of CD's - David Pritchard 11:27:25 08/12/12 (17)

RE: Cryoing vs dry ice treatment of CD's - geoffkait 16:13:21 08/12/12 (16)

RE: Cryoing vs dry ice treatment of CD's - IEaudiodude 20:29:02 08/14/12 (0)

Are you implying that the effects are comparable? nt - Norm 17:40:01 08/12/12 (14)

RE: Are you implying that the effects are comparable? nt - geoffkait 17:59:10 08/12/12 (13)

I just stuck 50 onto an empty CD-R spindle. Stuck them in. Keeps em' safe from scratching.. - Elizabeth 19:50:26 08/12/12 (0)

Time to stuff my freezer with Cds.... Hey, Geoff, how long to treat? nt - Elizabeth 19:34:16 08/12/12 (11)

RE: Time to stuff my freezer with Cds.... Hey, Geoff, how long to treat? nt - geoffkait 01:03:31 08/13/12 (10)

Easier - unclestu 16:25:27 08/13/12 (9)

RE: Easier - geoffkait 16:30:59 08/13/12 (8)

RE: Easier - unclestu 14:17:04 08/14/12 (4)

RE: Easier - geoffkait 14:52:07 08/14/12 (3)

RE: Easier - unclestu 13:08:19 08/15/12 (2)

RE: Easier - IEaudiodude 17:32:43 08/15/12 (0)

RE: Easier - geoffkait 13:50:29 08/15/12 (0)

RE: Easier - rick_m 22:33:42 08/13/12 (0)

MRC is ?what? Google is of no assitance. - Elizabeth 21:14:50 08/13/12 (1)

RE: MRC is ?what? Google is of no assitance. - Julien43 02:54:34 08/14/12 (0)

Dry ice is nowhere near absolute zero. -109ºs F vs -460º F. - Norm 08:28:39 08/12/12 (2)

RE: Dry ice is nowhere near absolute zero. -109ºs F vs -460º F. - alan m. kafton 16:06:28 08/12/12 (1)

RE: Dry ice is nowhere near absolute zero. -109ºs F vs -460º F. - 6bq5 10:23:41 08/14/12 (0)

Follow Ups

RE: Dry ice is nowhere near absolute zero. -109ºs F vs -460º F. - 6bq5 10:23:41 08/14/12 (0)

RE: Dry ice is nowhere near absolute zero. -109ºs F vs -460º F.

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