Crossref journal-article
Proceedings of the National Academy of Sciences
Proceedings of the National Academy of Sciences (341)
Abstract

Significance Commuting during rush hours teaches us that the denser the crowd, the slower the motion. Liquids follow this law, except water below ambient temperature: Increasing density decreases viscosity! This anomaly witnesses the progressive breaking of the hydrogen bond network in water. Because this network develops upon cooling, dramatic effects of pressure on viscosity are expected in water supercooled below its freezing point. However, no data were hitherto available under these extreme conditions. Using a time-of-flight viscometer, we provide viscosity data down to −29 °C and up to 3,000 atmospheres, revealing that pressure can reduce viscosity by nearly one half. We propose a model that treats water as a mixture of two species, and explains its thermodynamic and dynamic properties.

Bibliography

Singh, L. P., Issenmann, B., & Caupin, F. (2017). Pressure dependence of viscosity in supercooled water and a unified approach for thermodynamic and dynamic anomalies of water. Proceedings of the National Academy of Sciences, 114(17), 4312–4317.

Authors 3
  1. Lokendra P. Singh (first)
  2. Bruno Issenmann (additional)
  3. Frédéric Caupin (additional)
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Dates
Type When
Created 8 years, 4 months ago (April 12, 2017, 9:10 p.m.)
Deposited 3 years, 4 months ago (April 13, 2022, 2:23 a.m.)
Indexed 3 weeks, 6 days ago (Aug. 6, 2025, 8:12 a.m.)
Issued 8 years, 4 months ago (April 12, 2017)
Published 8 years, 4 months ago (April 12, 2017)
Published Online 8 years, 4 months ago (April 12, 2017)
Published Print 8 years, 4 months ago (April 25, 2017)
Funders 1
  1. EC | European Research Council 10.13039/501100000781 European Research Council

    Region: Europe

    gov (National government)

    Labels1
    1. ERC
    Awards1
    1. 240113

@article{Singh_2017, title={Pressure dependence of viscosity in supercooled water and a unified approach for thermodynamic and dynamic anomalies of water}, volume={114}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.1619501114}, DOI={10.1073/pnas.1619501114}, number={17}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Singh, Lokendra P. and Issenmann, Bruno and Caupin, Frédéric}, year={2017}, month=apr, pages={4312–4317} }