TY  - JOUR
A1  - Holten, Vincent
A1  - Qiu, Chen
A1  - Guillerm, Emmanuel
A1  - Wilke, Max
A1  - Ricka, Jaroslav
A1  - Frenz, Martin
A1  - Caupin, Frederic
T1  - Compressibility Anomalies in Stretched Water and Their Interplay with Density Anomalies
T2  - The journal of physical chemistry letters
N2  - Water keeps puzzling scientists because of its numerous properties which behave oppositely to those of usual liquids: for instance, water expands upon cooling, and liquid water is denser than ice. To explain this anomalous behavior, several theories have been proposed, with different predictions for the properties of supercooled water (liquid at conditions where ice is stable). However, discriminating between those theories with experiments has remained elusive because of spontaneous ice nucleation. Here we measure the sound velocity in liquid water stretched to negative pressure and derive an experimental equation of state, which reveals compressibility anomalies. We show by rigorous thermodynamic relations how these anomalies are intricately linked with the density anomaly. Some features we observe are necessary conditions for the validity of two theories of water.
Y1  - 2017
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/46172
SN  - 1948-7185
VL  - 8
SP  - 5519
EP  - 5522
PB  - American Chemical Society
CY  - Washington
ER  -