Calorimetric study of water's two glass transitions in the presence of LiCl

A DSC study of dilute glassy LiCl aqueous solutions in the water-dominated regime provides direct evidence of a glass-to-liquid transition in expanded high density amorphous (eHDA)-type solutions. Similarly, low density amorphous ice (LDA) exhibits a glass transition prior to crystallization to ice...

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Detalles Bibliográficos
Autores principales: Ruiz, G.N., Amann-Winkel, K., Bove, L.E., Corti, H.R., Loerting, T.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_14639076_v20_n9_p6401_Ruiz
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_14639076_v20_n9_p6401_Ruiz2023-10-03T16:16:58Z Calorimetric study of water's two glass transitions in the presence of LiCl Ruiz, G.N. Amann-Winkel, K. Bove, L.E. Corti, H.R. Loerting, T. A DSC study of dilute glassy LiCl aqueous solutions in the water-dominated regime provides direct evidence of a glass-to-liquid transition in expanded high density amorphous (eHDA)-type solutions. Similarly, low density amorphous ice (LDA) exhibits a glass transition prior to crystallization to ice Ic. Both glass transition temperatures are independent of the salt concentration, whereas the magnitude of the heat capacity increase differs. By contrast to pure water, the glass transition endpoint for LDA can be accessed in LiCl aqueous solutions above 0.01 mole fraction. Furthermore, we also reveal the endpoint for HDA's glass transition, solving the question on the width of both glass transitions. This suggests that both equilibrated HDL and LDL can be accessed in dilute LiCl solutions, supporting the liquid-liquid transition scenario to understand water's anomalies. © 2017 the Owner Societies. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14639076_v20_n9_p6401_Ruiz
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description A DSC study of dilute glassy LiCl aqueous solutions in the water-dominated regime provides direct evidence of a glass-to-liquid transition in expanded high density amorphous (eHDA)-type solutions. Similarly, low density amorphous ice (LDA) exhibits a glass transition prior to crystallization to ice Ic. Both glass transition temperatures are independent of the salt concentration, whereas the magnitude of the heat capacity increase differs. By contrast to pure water, the glass transition endpoint for LDA can be accessed in LiCl aqueous solutions above 0.01 mole fraction. Furthermore, we also reveal the endpoint for HDA's glass transition, solving the question on the width of both glass transitions. This suggests that both equilibrated HDL and LDL can be accessed in dilute LiCl solutions, supporting the liquid-liquid transition scenario to understand water's anomalies. © 2017 the Owner Societies.
format JOUR
author Ruiz, G.N.
Amann-Winkel, K.
Bove, L.E.
Corti, H.R.
Loerting, T.
spellingShingle Ruiz, G.N.
Amann-Winkel, K.
Bove, L.E.
Corti, H.R.
Loerting, T.
Calorimetric study of water's two glass transitions in the presence of LiCl
author_facet Ruiz, G.N.
Amann-Winkel, K.
Bove, L.E.
Corti, H.R.
Loerting, T.
author_sort Ruiz, G.N.
title Calorimetric study of water's two glass transitions in the presence of LiCl
title_short Calorimetric study of water's two glass transitions in the presence of LiCl
title_full Calorimetric study of water's two glass transitions in the presence of LiCl
title_fullStr Calorimetric study of water's two glass transitions in the presence of LiCl
title_full_unstemmed Calorimetric study of water's two glass transitions in the presence of LiCl
title_sort calorimetric study of water's two glass transitions in the presence of licl
url http://hdl.handle.net/20.500.12110/paper_14639076_v20_n9_p6401_Ruiz
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