ABSTRACT

Measurements of thermophysical properties (vapor pressure, density, and viscosity) of the water + lithium bromide + sodium formate system (LiBr:CHO2Na =2:1 by mass ratio) and the water + lithium bromide + potassium formate system (LiBr:CHO2K =2:1 by mass ratio) were measured. The system, a possible new working fluid for absorption heat pump, consists of absorbent (LiBr + CHO2Na) or (LiBr + CHO2K) and refrigerant (H2O). The vapor pressures were measured in the ranges of temperature and absorbent concentration from 293.15 K to 343.15 K and from 20.0 mass % to 60 mass %. The experimental data were correlated with an Antoine-type equation. Densities and viscosities were measured in the same range of temperature and absorbent concentration that vapor pressure. Regression equations for densities and viscosities were obtained with a minimum mean-square-error criterion.

Compounds

#	Formula	Name
1	CHNaO2	sodium methanoate
2	CHKO2	potassium formate
3	BrLi	lithium bromide
4	H2O	water

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 4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mass fraction - 4; Liquid Mass fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:8	18
POMD	1 3 4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mass fraction - 4; Liquid Mass fraction - 1; Liquid		Liquid Gas	EBULLIO:UFactor:8	51
POMD	1 3 4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mass fraction - 4; Liquid Mass fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	OTHER	42
POMD	2 3 4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mass fraction - 4; Liquid Mass fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:8	22
POMD	2 3 4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mass fraction - 4; Liquid Mass fraction - 2; Liquid		Liquid Gas	EBULLIO:UFactor:8	51
POMD	2 3 4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mass fraction - 4; Liquid Mass fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	OTHER	44

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

Vapor prssures, desities, and viscosities of the (Water + Lithium + Bromide + Sodium Formate) system and (Water + Lithium Bromide + Potassium Formate) system

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

ABSTRACT