ABSTRACT

Mutual solubility of potassium metavanadate and potassium nitrate(V) was investigated in the KVO3 KNO3 H2O system at the temperature range 293.15 323.15 K. The equilibrium studies were conducted using isothermal saturation of a solution method. On the base of the received results a fragment of the solubility polytherm for the investigated system was plotted. The knowledge of the course of that isotherm for the ternary system is necessary to plot the equilibrium diagram in a planar projection prepared according to the Janecke method for the systems of exchange salts NH4NO3-KVO3-H2O and to determine optimal conditions for utilization of the post-filtration liquor from soda production with the Soda Chlorine Saltpeter (SCS) method.

Compounds

#	Formula	Name
1	KO3V	potassium vanadate
2	H2O	water
3	KNO3	potassium nitrate

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	Solid-liquid equilibrium temperature, K ; Liquid	Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	spectroscopy	4
POMD	1 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	4
POMD	3 2	Molality, mol/kg - 3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	spectroscopy	4
POMD	3 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	4
POMD	1 3 2	Molality, mol/kg - 3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	spectroscopy	40
POMD	1 3 2	Molality, mol/kg - 3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	spectroscopy	14
POMD	1 3 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	50

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

Solid Liquid Equilibria Studies in the KVO3-KNO3-H2O System in the Temperature Range 293.15-323.15 K

Wrobel, Adriana, Druzynski, Sebastian, Kielkowska, Urszula

ABSTRACT