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Densities of supercooled H2O and D2O in 25 μ glass capillaries

We have measured the densities of supercooled H2O to −34.2 °C, and D2O to −19.2 °C in 25 μ i.d. glass capillaries. Because of the small size of our capillaries, some surface energy effects appear to be present in our data. Despite this we found that reasonably accurate values of the thermal expansiv...

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Published in:The Journal of chemical physics 1986-05, Vol.84 (9), p.5085-5089
Main Authors: HARE, D. E, SORENSEN, C. M
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Language:English
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description We have measured the densities of supercooled H2O to −34.2 °C, and D2O to −19.2 °C in 25 μ i.d. glass capillaries. Because of the small size of our capillaries, some surface energy effects appear to be present in our data. Despite this we found that reasonably accurate values of the thermal expansivity could be obtained from our data. Our expansivity results support the recent contention of Leyendekkers and Hunter that previous estimates of the anomalous expansivity of supercooled water have been overestimated. The results of a power-law analysis of our expansivity were ambiguous due to the poorly known background expansivity.
doi_str_mv 10.1063/1.450660
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subjects Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Physics
Thermal expansion
thermomechanical effects and density
Thermal properties of condensed matter
Thermal properties of crystalline solids
title Densities of supercooled H2O and D2O in 25 μ glass capillaries
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