ABSTRACT

Measurements of thermophysical properties (vapour pressure, density, and viscosity) of the (water + lithium bromide + potassium acetate) system LiBr:CH3COOK = 2:1 by mass ratio and the (water + lithium bromide + sodium lactate) system LiBr:CH3- CH(OH)COONa = 2:1 by mass ratio were measured. The system, a possible new working fluid for absorption heat pump, consists of absorbent (LiBr + CH3COOK) or (LiBr + CH3CH(OH)COONa) and refrigerant H2O. The vapour pressures were measured in the ranges of temperature and absorbent concentration from T = (293.15 to 333.15) K and from mass fraction 0.20 to 0.50, densities and viscosities were measured from T = (293.15 to 323.15) K and from mass fraction 0.20 to 0.40. The experimental data were correlated with an Antoine-type equation. Densities and viscosities were measured in the same range of temperature and absorbent concentration as that of the vapour pressure. Regression equations for densities and viscosities were obtained with a minimum mean square error criterion. ?

Compounds

#	Formula	Name
1	H2O	water
2	C2H3KO2	potassium ethanoate
3	C3H5NaO3	sodium lactate
4	BrLi	lithium bromide

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	2 4 1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mass fraction - 4; Liquid Mass fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:3	12
POMD	2 4 1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mass fraction - 4; Liquid Mass fraction - 2; Liquid		Liquid Gas	CCELL:UFactor:8	36
POMD	2 4 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mass fraction - 4; Liquid Mass fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	HYBAL:UFactor:4	28
POMD	3 4 1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mass fraction - 4; Liquid Mass fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:3	18
POMD	3 4 1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mass fraction - 4; Liquid Mass fraction - 3; Liquid		Liquid Gas	EBULLIO:UFactor:8	32
POMD	3 4 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mass fraction - 4; Liquid Mass fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	HYBAL:UFactor:4	21

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Vapour pressures, densities, and viscosities of the (water + lithium bromide + potassium acetate) system and (water + lithium bromide + sodium lactate) system

de Lucas, A.[Antonio], Donate, M.[Marina], Rodriguez, J. F.

ABSTRACT