Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Ultrasound velocity in dissolving alkali halide melts

Stepanov, V. P.[Victor P.], Minchenko, V. I.[Vladimir I.]
J. Chem. Thermodyn. 2011, 43, 3, 467-470
ABSTRACT
Ultrasound velocities in the molten exsolving mixtures (LiF + CsCl, LiF + KBr, LiF + RbBr, LiF + CsBr, LiF + KI, LiF + RbBr, and LiF + CsBr) were obtained along the saturation line over a wide temperature range using the acoustic method. The temperature dependences of properties far away from the critical temperature are close to linear and the temperature and composition factors are highly correlated. The difference between the magnitudes of sound velocity for the coexisting phases increases with the radii of ions in the mixtures. The linearity of the temperature dependence of the velocity, which is typical for all systems at relatively low temperatures, is violated when approaching the critical point of mixing, mainly due to sharp changes of the light phase state. Our results suggested a classical (mean-field) critical behavior of ionic melts.
Compounds
# Formula Name
1 FLi lithium fluoride
2 ClCs cesium chloride
3 BrK potassium bromide
4 BrRb rubidium bromide
5 BrCs cesium bromide
6 IK potassium iodide
7 IRb rubidium iodide (RbI)
8 CsI cesium iodide
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • 3
  • Upper consolute temperature, K ; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Air at 1 atmosphere
  • From speed of sound measurements
  • 1
  • POMD
  • 1
  • 3
  • Speed of sound, m/s ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Frequency, MHz; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Single path-length method
  • 11
  • POMD
  • 1
  • 3
  • Speed of sound, m/s ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Frequency, MHz; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Single path-length method
  • 11
  • POMD
  • 1
  • 3
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 1; Liquid
  • Frequency, MHz; Liquid
  • Liquid
  • Single path-length method
  • 3
  • POMD
  • 1
  • 4
  • Speed of sound, m/s ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Frequency, MHz; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Single path-length method
  • 9
  • POMD
  • 1
  • 4
  • Speed of sound, m/s ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Frequency, MHz; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Single path-length method
  • 9
  • POMD
  • 1
  • 5
  • Speed of sound, m/s ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Frequency, MHz; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Single path-length method
  • 7
  • POMD
  • 1
  • 5
  • Speed of sound, m/s ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Frequency, MHz; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Single path-length method
  • 7
  • POMD
  • 1
  • 6
  • Speed of sound, m/s ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Frequency, MHz; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Single path-length method
  • 9
  • POMD
  • 1
  • 6
  • Speed of sound, m/s ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Frequency, MHz; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Single path-length method
  • 9
  • POMD
  • 1
  • 7
  • Speed of sound, m/s ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Frequency, MHz; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Single path-length method
  • 8
  • POMD
  • 1
  • 7
  • Speed of sound, m/s ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Frequency, MHz; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Single path-length method
  • 8
  • POMD
  • 1
  • 8
  • Speed of sound, m/s ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Frequency, MHz; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Single path-length method
  • 8
  • POMD
  • 1
  • 8
  • Speed of sound, m/s ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Frequency, MHz; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Single path-length method
  • 8
  • POMD
  • 1
  • 2
  • Upper consolute temperature, K ; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Air at 1 atmosphere
  • From speed of sound measurements
  • 1
  • POMD
  • 1
  • 2
  • Speed of sound, m/s ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Frequency, MHz; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Single path-length method
  • 6
  • POMD
  • 1
  • 2
  • Speed of sound, m/s ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Frequency, MHz; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Single path-length method
  • 6
  • POMD
  • 1
  • 2
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 1; Liquid
  • Frequency, MHz; Liquid
  • Liquid
  • Single path-length method
  • 4