ABSTRACT

Heat capacity in the temperature range (5 to 370) K and parameters of fusion and the glass transition were determined for 1-methyl-3-propylimidazolium bromide and 1-butyl-3-methylimidazolium iodide. Thermodynamic properties of the compounds in the condensed state in a range of temperatures (0 to 370) K were calculated from the obtained data. It was demonstrated that heat capacities of liquid 1- butyl-3-methylimidazolium halides coincide within the experimental uncertainties, similar consistency is observed for residual entropy of the glassy compounds.

Compounds

#	Formula	Name
1	C7H13BrN2	1-methyl-3-propylimidazolium bromide
2	C8H15IN2	1-butyl-3-methylimidazolium iodide

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	Triple point temperature, K ; Crystal 2			Crystal 2 Liquid Gas	Adiabatic calorimetry	1
POMD	1	Molar enthalpy of transition or fusion, kJ/mol ; Crystal 2			Crystal 2 Liquid Gas	Adiabatic calorimetry	1
POMD	1	Triple point temperature, K ; Glass			Glass Liquid Gas	Adiabatic calorimetry	1
POMD	1	Molar heat capacity at constant pressure, J/K/mol ; Crystal 2	Temperature, K; Crystal 2	Pressure, kPa; Crystal 2	Crystal 2	Vacuum adiabatic calorimetry	36
POMD	1	Molar entropy, J/K/mol ; Crystal 2	Temperature, K; Crystal 2	Pressure, kPa; Crystal 2	Crystal 2	Vacuum adiabatic calorimetry	36
POMD	1	Molar enthalpy function {Hm(T)-Hm(0)}/T, J/K/mol ; Crystal 2	Temperature, K; Crystal 2	Pressure, kPa; Crystal 2	Crystal 2	Vacuum adiabatic calorimetry	36
POMD	1	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vacuum adiabatic calorimetry	18
POMD	1	Molar entropy, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vacuum adiabatic calorimetry	18
POMD	1	Molar enthalpy function {Hm(T)-Hm(0)}/T, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vacuum adiabatic calorimetry	18
POMD	1	Molar heat capacity at constant pressure, J/K/mol ; Glass	Temperature, K; Glass	Pressure, kPa; Glass	Glass	Vacuum adiabatic calorimetry	26
POMD	1	Molar entropy, J/K/mol ; Glass	Temperature, K; Glass	Pressure, kPa; Glass	Glass	Vacuum adiabatic calorimetry	27
POMD	1	Molar enthalpy function {Hm(T)-Hm(0)}/T, J/K/mol ; Glass	Temperature, K; Glass	Pressure, kPa; Glass	Glass	Vacuum adiabatic calorimetry	26
POMD	1	Molar heat capacity at constant pressure, J/K/mol ; Crystal 2	Temperature, K; Crystal 2	Pressure, kPa; Crystal 2	Crystal 2	Vacuum adiabatic calorimetry	278
POMD	1	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vacuum adiabatic calorimetry	41
POMD	1	Molar heat capacity at constant pressure, J/K/mol ; Glass	Temperature, K; Glass	Pressure, kPa; Glass	Glass	Vacuum adiabatic calorimetry	128
POMD	1	Molar enthalpy, kJ/mol ; Glass	Temperature, K; Glass Pressure, kPa; Glass		Glass	Vacuum adiabatic calorimetry	1
POMD	2	Triple point temperature, K ; Crystal			Crystal Liquid Gas	Adiabatic calorimetry	1
POMD	2	Molar enthalpy of transition or fusion, kJ/mol ; Crystal			Crystal Liquid Gas	Adiabatic calorimetry	1
POMD	2	Triple point temperature, K ; Glass			Glass Liquid Gas	Adiabatic calorimetry	1
POMD	2	Molar heat capacity at constant pressure, J/K/mol ; Crystal	Temperature, K; Crystal	Pressure, kPa; Crystal	Crystal	Vacuum adiabatic calorimetry	35
POMD	2	Molar entropy, J/K/mol ; Crystal	Temperature, K; Crystal	Pressure, kPa; Crystal	Crystal	Vacuum adiabatic calorimetry	35
POMD	2	Molar enthalpy function {Hm(T)-Hm(0)}/T, J/K/mol ; Crystal	Temperature, K; Crystal	Pressure, kPa; Crystal	Crystal	Vacuum adiabatic calorimetry	35
POMD	2	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vacuum adiabatic calorimetry	19
POMD	2	Molar entropy, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vacuum adiabatic calorimetry	19
POMD	2	Molar enthalpy function {Hm(T)-Hm(0)}/T, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vacuum adiabatic calorimetry	19
POMD	2	Molar heat capacity at constant pressure, J/K/mol ; Glass	Temperature, K; Glass	Pressure, kPa; Glass	Glass	Vacuum adiabatic calorimetry	25
POMD	2	Molar entropy, J/K/mol ; Glass	Temperature, K; Glass	Pressure, kPa; Glass	Glass	Vacuum adiabatic calorimetry	26
POMD	2	Molar enthalpy function {Hm(T)-Hm(0)}/T, J/K/mol ; Glass	Temperature, K; Glass	Pressure, kPa; Glass	Glass	Vacuum adiabatic calorimetry	25
POMD	2	Molar heat capacity at constant pressure, J/K/mol ; Crystal	Temperature, K; Crystal	Pressure, kPa; Crystal	Crystal	Vacuum adiabatic calorimetry	253
POMD	2	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vacuum adiabatic calorimetry	115
POMD	2	Molar heat capacity at constant pressure, J/K/mol ; Glass	Temperature, K; Glass	Pressure, kPa; Glass	Glass	Vacuum adiabatic calorimetry	125
POMD	2	Molar enthalpy, kJ/mol ; Glass	Temperature, K; Glass Pressure, kPa; Glass		Glass	Vacuum adiabatic calorimetry	1

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Low-temperature heat capacity and derived thermodynamic properties for 1-methyl-3-propylimidazolium bromide and 1-butyl-3- methylimidazolium iodide

Paulechka, Y. U.[Yauheni U.], Blokhin, A. V.[Andrey V.]

ABSTRACT