RT Journal Article T1 Physical properties of a new dipeptide ionic liquid in water and methanol at several temperatures: Correlation and prediction A1 Álvarez Álvarez, María Salomé A1 Rivas Soilán, Miguel Ángel A1 Deive Herva, Francisco Javier A1 Rodríguez Rodríguez, Ana María K1 3310.05 Ingeniería de Procesos K1 3303 Ingeniería y Tecnología Químicas K1 2210 Química Física AB The physical properties of choline glycylglycinate (ChGlyGly) were experimentally determined at severaltemperatures. The empirical values of density, refractive index, speed of sound and dynamic viscosity foraqueous and methanolic mixtures of this ionic liquid were also ascertained at different temperatures.From these values, isentropic compressibility, molar volume, free volume, isobaric thermal expansivityand molar refraction have been calculated along with critical parameters (temperature, volume and pressure),acentric factor and boiling point. From a theoretical point of view, derived values of the neatChGlyGly and the corresponding mixtures have been ascertained in the abovementioned temperatureinterval. Polynomial fittings turned to suitably describe the obtained data while Redlich-Kister has beenused to fit to the derived magnitudes. To conclude, the density of the mixtures has been successfully predictedat several temperatures for the first time by means of different models PB Journal of Molecular Liquids SN 01677322 YR 2023 FD 2023 LK http://hdl.handle.net/11093/4494 UL http://hdl.handle.net/11093/4494 LA eng NO Journal of Molecular Liquids, 376, 121435 (2023) NO Financiado para publicación en acceso aberto: Universidade de Vigo/CISUG NO Ministerio de Ciencia, Innovación y Universidades | Ref. RTI2018-094702-B-I00 DS Investigo RD 04-dic-2024