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Science 23 August 2002:
Vol. 297. no. 5585, pp. 1288 - 1289
DOI: 10.1126/science.297.5585.1288
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Perspectives

Also see the archival list of Science's Compass: Enhanced Perspectives

THERMODYNAMICS:
Enhanced: Water and Ice

Alan K. Soper

The water phase diagram is extraordinarily complex. In addition to numerous solid phases of ice, studies have pointed to the existence of distinct amorphous phases. It has even been proposed that there may be a liquid-liquid critical point, where two different liquid phases coexist. In his Perspective, Soper highlights the report by Tulk et al., whose results provide evidence against distinct amorphous phases. These phases were believed to be the low-temperature manifestations of the two liquid forms of water. The work raises doubts about the idea that there is a liquid-liquid phase separation in low-temperature water.

The author is at the Rutherford Appleton Laboratory, ISIS Facility, Chilton, Didcot, Oxon OX11 0QX, UK. E-mail: a.k.soper{at}rl.ac.uk

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Structure of Glasses and Melts.
M. C. Wilding and C. J. Benmore (2006)
Reviews in Mineralogy and Geochemistry 63, 275-311
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