ABSTRACT

The isothermal dissolution equilibrium method was used to determine the solubilities of salts and the equilibrium solid phases in the two ternary systems: Li2SO4 Li2B4O7 H2O and K2B4O7 K2SO4 H2O at 273 K. These results are also used to construct phase diagrams of the two ternary systems. Both phase diagrams have an eutectic point, two univariant solubility curves, and two crystallization regions of single solid phase. At the eutectic point of the ternary system Li2SO4 Li2B4O7 H2O, the coexisting solid phases are Li2B4O7*3H2O and Li2SO4*H2O; at the eutectic point of the ternary system K2B4O7 K2SO4 H2O, the coexisting solid phases are K2B4O7*4H2O and K2SO4.

Compounds

#	Formula	Name
1	H2O	water
2	Li2O4S	lithium sulfate
3	B4Li2O7	lithium borate
4	B4K2O7	potassium tetraborate
5	K2O4S	potassium sulfate

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	Mass fraction - 3 ; Liquid	Mass fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid Crystal of intercomponent compound 1	Titration method	6
POMD	1 2 3	Mass fraction - 3 ; Liquid	Mass fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid Crystal of intercomponent compound 2	Titration method	8
POMD	4 1 5	Mass fraction - 4 ; Liquid	Mass fraction - 5; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid Crystal of intercomponent compound 1	Titration method	6
POMD	4 1 5	Mass fraction - 4 ; Liquid	Mass fraction - 5; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid Crystal of intercomponent compound 2	Titration method	5
POMD	1 3	Mass fraction - 3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid Crystal of intercomponent compound 1	Titration method	1
POMD	1 2	Mass fraction - 2 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid Crystal of intercomponent compound 1	Titration method	1
POMD	1 5	Mass fraction - 5 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid Crystal of intercomponent compound 1	Titration method	1
POMD	4 1	Mass fraction - 4 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid Crystal of intercomponent compound 2	Titration method	1

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

Phase Equilibria of Two Ternary Systems: Li2SO4 Li2B4O7 H2O and K2B4O7 K2SO4 H2O at 273 K

Yang, Y.[Yuyan], Zhang, X.[Xueping], Wang, D.[Dan], Sang, S.-H.[Shi-Hua]

ABSTRACT