ABSTRACT

LiBr-[EMIM]Cl/H2O ternary system has been suggested as an alternative absorption working pair in this work. The crystallization temperature, vapor pressure, specific heat capacity, specific enthalpy, specific entropy, density and viscosity of this ternary system at a mass ratio of 2.5:1 (LiBr:[EMIM]Cl) were measured systematically. The results showed that the vapor pressure of the LiBr-[EMIM]Cl/H2O was nearly identical with that of LiBr/H2O at an 8.5 % lower mass fraction. Under the same absorption ability, LiBr-[EMIM]Cl/H2O had a crystallization temperature much lower than LiBr/H2O, as well as much lower viscosity than ionic liquids. LiBr-[EMIM]Cl/H2O shows a certain potential as an alternative working pair in the absorption heat pump system.

Compounds

#	Formula	Name
1	C6H11ClN2	1-ethyl-3-methylimidazolium chloride
2	BrLi	lithium bromide
3	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	Molar heat capacity at constant pressure, J/K/mol ; Crystal	Temperature, K; Crystal	Pressure, kPa; Crystal	Crystal	Extra sensitive DSC	3
POMD	1	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Extra sensitive DSC	2
POMD	2 1 3	Solid-liquid equilibrium temperature, K ; Liquid	Mass fraction - 2; Liquid	Pressure, kPa; Liquid Mass fraction - 3; Liquid	Liquid Crystal of unknown type	Large-sample thermal analysis	4
POMD	2 1 3	Solid-liquid equilibrium temperature, K ; Liquid	Mass fraction - 3; Liquid	Pressure, kPa; Liquid Solvent: Mass ratio of component to other component of binary solvent - 2; Liquid	Liquid Crystal of unknown type	Large-sample thermal analysis	6
POMD	2 1 3	Vapor or sublimation pressure, kPa ; Liquid	Mass fraction - 3; Liquid Temperature, K; Liquid	Solvent: Mass ratio of component to other component of binary solvent - 2; Liquid	Liquid Gas	Closed cell (Static) method	48
POMD	2 1 3	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Mass fraction - 3; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid Solvent: Mass ratio of component to other component of binary solvent - 2; Liquid	Liquid	Extra sensitive DSC	36
POMD	2 1 3	Mass density, kg/m3 ; Liquid	Mass fraction - 3; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid Solvent: Mass ratio of component to other component of binary solvent - 2; Liquid	Liquid	Pycnometric method	32
POMD	2 1 3	Viscosity, Pa*s ; Liquid	Mass fraction - 3; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid Solvent: Mass ratio of component to other component of binary solvent - 2; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	32
POMD	2 3	Molar enthalpy of solution, kJ/mol ; Liquid	Mass fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Power-compensation calorimetry	4
POMD	1 3	Molar enthalpy of solution, kJ/mol ; Liquid	Mass fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Power-compensation calorimetry	4

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

Thermodynamic Properties of a Ternary AHP Working Pair: Lithium Bromide + 1-Ethyl-3-methylimidazolium Chloride + H2O

Yang, Dongtai, Zhu, Yajun, Liu, Sicong, Lv, Haoxiang, Luo, Chunhuan

ABSTRACT