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Possible Anomaly in the Surface Tension of Supercooled Water: New Experiments at Extreme Supercooling down to-31.4 degrees C
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SYSNO ASEP 0524476 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Possible Anomaly in the Surface Tension of Supercooled Water: New Experiments at Extreme Supercooling down to-31.4 degrees C Author(s) Vinš, Václav (UT-L) RID, ORCID
Hykl, Jiří (UT-L) RID, ORCID
Hrubý, Jan (UT-L) RID, ORCID
Blahut, Aleš (UT-L) RID, ORCID
Celný, David (UT-L)
Čenský, Miroslav (UT-L)
Prokopová, Olga (UT-L)Number of authors 7 Source Title Journal of Physical Chemistry Letters. - : American Chemical Society - ISSN 1948-7185
Roč. 11, č. 11 (2020), s. 4443-4447Number of pages 5 s. Publication form Online - E Language eng - English Country US - United States Keywords supercooled water ; surface tension ; SIP anomaly ; capillary rise Subject RIV BJ - Thermodynamics OECD category Thermodynamics R&D Projects GA19-05696S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UT-L - RVO:61388998 UT WOS 000538759600032 EID SCOPUS 85085960621 DOI 10.1021/acs.jpclett.0c01163 Annotation 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. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2021 Electronic address https://dx.doi.org/10.1021/acs.jpclett.0c01163
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