Possible Anomaly in the Surface Tension of Supercooled Water: New Experiments at Extreme Supercooling down to-31.4 degrees C

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F20%3A00524476" target="_blank" >RIV/61388998:_____/20:00524476 - isvavai.cz</a>
Result on the web
<a href="https://dx.doi.org/10.1021/acs.jpclett.0c01163" target="_blank" >https://dx.doi.org/10.1021/acs.jpclett.0c01163</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.jpclett.0c01163" target="_blank" >10.1021/acs.jpclett.0c01163</a>

Result language
angličtina
Original language name
Possible Anomaly in the Surface Tension of Supercooled Water: New Experiments at Extreme Supercooling down to-31.4 degrees C
Original language description
The surface tension of water is suspected to show a substantial increase at low temperatures, which is considered to be one of the many anomalies of water. The second inflection point (SIP) anomaly, originally claimed to be at around -8 degrees C, was experimentally refuted down to -25 degrees C by HrubY et al. (J. Phys. Chem. Lett. 2014, 5, 425-428). Recent molecular simulations predict the SIP anomaly near or even below the homogeneous freezing limit of around -38 degrees C. To contribute to an ongoing discussion about the SIP anomaly, new experiments focused on extreme levels of supercooling were carried out in this study. Unique experimental data down to -31.4 degrees C were collected using two measuring techniques based on the capillary rise method. A significant deviation from the extrapolated IAPWS formulation R1-76(2014) for surface tension of ordinary water was detected below -20 degrees C. Contrary to previous data, new experiments provide room for an anomaly in the course of surface tension in the deeply supercooled region.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20303 - Thermodynamics

Project
<a href="/en/project/GA19-05696S" target="_blank" >GA19-05696S: Properties of water-based heat transfer fluids under extreme conditions</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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