Ice V

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Ice V, pronounced "ice five", is a monoclinic crystalline phase of water, formed by cooling water to 253 K at 500 MPa. It has a density of 1.24 g cm3 (at 350 MPa).[1]

Ice V has a complicated structure, including 4-membered, 5-membered, 6-membered, and 8-membered rings and a total of 28 molecules in the unit cell.[2][3] Ganymede's interior probably includes a liquid water ocean with tens to hundreds of kilometers of Ice V at its base.[4]


  1. ^ Drost-Hansen, W. (1969-11-14). "The Structure and Properties of Water. D. Eisenberg and W. Kauzmann. Oxford University Press, New York, 1969. xiv + 300 pp., illus. Cloth, $10; paper, $4.50". Science. 166 (3907): 861. doi:10.1126/science.166.3907.861. ISSN 0036-8075.
  2. ^ Chaplin, Martin (10 April 2012). "Ice-five (Ice V)". Retrieved 19 May 2014.
  3. ^ Kamb, B.; Prakash, A.; Knobler, C. (1967). "Structure of ice. V". Acta Crystallographica. 22 (5): 706. doi:10.1107/S0365110X67001409.
  4. ^ Showman, A. (1997). "Coupled Orbital and Thermal Evolution of Ganymede" (PDF). Icarus. 129 (2): 367–383. doi:10.1006/icar.1997.5778.