ABSTRACT

In this work, we report the measurements of the thermodynamic properties of RbF or CsF in the ethene glycol + water system at 298.15 K in the range of w = 0.10 to 0.40 ethene glycol. The experimental data were calculated by Pitzer model. Standard cell potentials and Pitzer parameters were obtained. From these, mean activity coefficients of RbF or CsF, osmotic coefficients of the mixtures, and standard Gibbs energies of transfer of RbF or CsF from water to ethene glycol + water mixtures were calculated.

Compounds

#	Formula	Name
1	C2H6O2	1,2-ethanediol
2	H2O	water
3	FRb	rubidium fluoride (RbF)
4	CsF	cesium fluoride (CsF)

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 2 3	Mean ionic activity coefficient - 3 ; Liquid	Solvent: Mass fraction - 1; Liquid Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	ion-selective electrode	133
POMD	1 2 4	Mean ionic activity coefficient - 4 ; Liquid	Solvent: Mass fraction - 1; Liquid Molality, mol/kg - 4; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	ion-selective electrode	152
POMD	2 3	Mean ionic activity coefficient - 3 ; Liquid	Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	ion-selective electrode	26
POMD	2 4	Mean ionic activity coefficient - 4 ; Liquid	Molality, mol/kg - 4; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	ion-selective electrode	29

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Activity Coefficients of RbF or CsF in the Ethene Glycol + Water System by Potentiometric Measurements at 298.15 K

Wang, L.[Lei], Li, S.[Shu'ni], Zhai, Q.[Quanguo], Jiang, Y.[Yucheng], Hu, M.[Mancheng]

ABSTRACT