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  2. Liquid nitrogen - Wikipedia

    en.wikipedia.org/wiki/Liquid_nitrogen

    Liquid nitrogen (LN 2) is nitrogen in a liquid state at low temperature. Liquid nitrogen has a boiling point of about −196 °C (−321 °F; 77 K). It is produced industrially by fractional distillation of liquid air .

  3. List of cooling baths - Wikipedia

    en.wikipedia.org/wiki/List_of_cooling_baths

    Liquid N 2: Ethyl Acetate-84 Liquid N 2: n-Butanol-89 Liquid N 2: Hexane-94 Liquid N 2: Acetone-94 Liquid N 2: Toluene-95 Liquid N 2: Methanol-98 Liquid N 2: Cyclohexene-104 Liquid N 2: Isooctane-107 Liquid N 2: Ethyl iodide-109 Liquid N 2: Carbon disulfide-110 Liquid N 2: Butyl bromide-112 Liquid N 2: Ethanol-116 Liquid N 2: Ethyl bromide-119 ...

  4. Cooling bath - Wikipedia

    en.wikipedia.org/wiki/Cooling_bath

    Temperatures between approximately −78 °C and −17 °C can be maintained by placing coolant into a mixture of ethylene glycol and ethanol, [1] while mixtures of methanol and water span the −128 °C to 0 °C temperature range. [2] [3] Dry ice sublimes at −78 °C, while liquid nitrogen is used for colder baths.

  5. Cryogenics - Wikipedia

    en.wikipedia.org/wiki/Cryogenics

    Nitrogen is a liquid under −195.8 °C (77.3 K).. In physics, cryogenics is the production and behaviour of materials at very low temperatures.. The 13th International Institute of Refrigeration's (IIR) International Congress of Refrigeration (held in Washington DC in 1971) endorsed a universal definition of "cryogenics" and "cryogenic" by accepting a threshold of 120 K (−153 °C) to ...

  6. Flash freezing - Wikipedia

    en.wikipedia.org/wiki/Flash_freezing

    One can therefore observe a delay until the water adjusts to the new, below-freezing temperature. [8] Supercooled liquid water must become ice at -48 C (-55 F), not just because of the extreme cold, but because the molecular structure of water changes physically to form tetrahedron shapes, with each water molecule loosely bonded to four others. [9]

  7. 2024 NFL playoff picture: Who’s sealed their spot and who’s ...

    www.aol.com/sports/2024-nfl-playoff-picture...

    The NFL playoffs are nearly in sight and the heat is on for some teams still in the fight to make the postseason.. Week 15 saw the number of teams that have qualified for the playoffs increase to ...

  8. Freeze brand - Wikipedia

    en.wikipedia.org/wiki/Freeze_brand

    A liquid coolant—typically either liquid nitrogen (−196 °C, 77ºK, −320 °F) or 99% ethanol chilled with dry ice (−72 °C, 201ºK, −98 °F)—is used to bring the brand head down to its working temperature in an appropriately insulating container. [29]

  9. NFL playoff scenarios: Which teams can clinch in Week 15? - AOL

    www.aol.com/nfl-playoff-scenarios-teams-clinch...

    With four weeks left in the NFL regular season, only four teams have clinched playoff spots. But several more could join them in Week 15.