Ice Ic

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Ice Ic (pronounced "ice one c" or "ice icy") 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.

Presence in atmosphere[edit]

This type of ice can appear in Earth's atmosphere.[4]

See also[edit]

  • Ice I for the other crystalline form of ice

References[edit]

  • Chaplin, Martin (2007-07-16). "Cubic ice". Water Structure and Science. Retrieved 2008-01-02. 
  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. 
  4. ^ http://www.nature.com/nature/journal/v434/n7030/full/nature03403.html