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oai:docta.ucm.es:20.500.14352/63722024-09-23T15:37:38Zcom_20.500.14352_14col_20.500.14352_15

Zaragoza, Alberto Tripathi, Chandra Shekhar Pati González, Miguel A. Fernández Abascal, José Luis Caupin, Frédéric Valeriani, Chantal 2023-06-16T15:19:49Z 2023-06-16T15:19:49Z 2020-05-21 0021-9606 10.1063/5.0002745 https://hdl.handle.net/20.500.14352/6372 https://doi.org/10.1063/5.0002745 https://aip.scitation.org/ Adding salt to water at ambient pressure affects its thermodynamic properties. At low salt concentration, anomalies such as the density maximum are shifted to lower temperature, while at large enough salt concentration, they cannot be observed any more. Here, we investigate the effect of salt on an anomaly recently observed in pure water at negative pressure: the existence of a sound velocity minimum along isochores. We compare experiments and simulations for an aqueous solution of sodium chloride with molality around 1.2 mol kg(-1), reaching pressures beyond -100 MPa. We also discuss the origin of the minima in the sound velocity and emphasize the importance of the relative position of the temperatures of sound velocity and density anomalies. eng open access Effect of dissolved salt on the anomalies of water at negative pressure journal article