Ice Ic

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Ice Ic is a metastable cubic crystalline variant of ice. The oxygen atoms are arranged in a diamond structure. It is produced at temperatures between 130 and 220 K (−140 and −50 °C), and can exist up to 240 K,[1][2] when it transforms into ice Ih. It may occasionally be present in the upper atmosphere.[3]

Ordinary water ice is known as ice Ih, (in the Bridgman nomenclature). Different types of ice, from ice II to ice XV, have been created in the laboratory at different temperatures and pressures.

[edit] See also

  • Ice for other crystalline forms of ice

[edit] References

  1. ^ Murray, B.J.; Bertram, A. K. (2006). "Formation and stability of cubic ice in water droplets". Phys. Chem. Chem. Phys. 8 (1): 186–192. Bibcode 2006PCCP....8..186M. doi:10.1039/b513480c. PMID 16482260. 
  2. ^ Murray, B.J. (2008). "The Enhanced formation of cubic ice in aqueous organic acid droplets". Env. Res. Lett. 3 (2): 025008. Bibcode 2008ERL.....3b5008M. doi:10.1088/1748-9326/3/2/025008. 
  3. ^ Murray, B.J.; et al. (2005). "The formation of cubic ice under conditions relevant to Earth's atmosphere". Nature 434 (7030): 202–205. Bibcode 2005Natur.434..202M. doi:10.1038/nature03403. PMID 15758996. 
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