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Ice IX


 

Ice IX is a metastable form of solid water that exists at temperatures below 140K and pressures between 200 and 400 MPa. It has a tetragonal crystal lattice and a density of 1.16 g/cm^3, slightly higher than ordinary ice.

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

Related Topics:
Ice - Ice-I - Bridgman - Nomenclature

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Ice IX is not to be confused with "Ice-9" a fictional discovery in the novel Cat's Cradle by Kurt Vonnegut, Jr..

Related Topics:
Ice-9 - Cat's Cradle - Kurt Vonnegut, Jr.

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