Difference between revisions of "Ice Ih"

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'''Ice Ih''' (hexagonal ice) is a proton disordered ice phase having the space group P6<sub>3</sub>/mmc. Ice Ih has the following lattice parameters at 250 K:  ''a''=4.51842 &Aring; and ''c''=7.35556 &Aring; with four molecules per  unit cell (table 3 in Ref. 2). The proton ordered form of ice Ih is known as [[ice XI]], which (in principle) forms when ice Ih is cooled to below 72K (it is usually doped with KOH to aid the transition).
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'''Ice Ih''' (hexagonal ice) is a proton disordered ice phase having the space group P6<sub>3</sub>/mmc. Ice Ih has the following lattice parameters at 250 K:  ''a''=4.51842 &Aring;, <math>b=a\sqrt3</math>, and ''c''=7.35556 &Aring; with four molecules per  unit cell (table 3 in Ref. 2). The proton ordered form of ice Ih is known as [[ice XI]], which (in principle) forms when ice Ih is cooled to below 72K (it is usually doped with KOH to aid the transition).
  
 
==References==
 
==References==

Revision as of 12:51, 26 July 2007