ABSTRACT

Heat capacity for 1-butyl-3-methylimidazolium nitrate [C4mim][NO3] in the temperature range (5 to 370) K has been measured by adiabatic calorimetry. Temperatures and enthalpies of its phase transitions have been determined. Thermodynamic functions have been calculated for crystalline and liquid states. Hygroscopicity of [C4mim][NO3] has been measured. Phase transition temperatures for set of nitrate salts have been compared. Enthalpy of combustion and enthalpy of formation for crystalline [C4mim][NO3] have been determined using a static-bomb isoperibol combustion calorimeter. A correlation scheme for estimation of Cp of ionic liquids has been developed.

Compounds

#	Formula	Name
1	CO2	carbon dioxide
2	N2	nitrogen
3	H2O	water
4	O2	oxygen
5	C8H15N3O3	1-butyl-3-methylimidazolium 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	5	Molar enthalpy of transition or fusion, kJ/mol ; Crystal 1			Crystal 1 Liquid Gas	Adiabatic calorimetry	1
POMD	5	Molar enthalpy of transition or fusion, kJ/mol ; Crystal 2			Crystal 2 Crystal 1 Gas	Adiabatic calorimetry	1
POMD	5	Molar enthalpy of transition or fusion, kJ/mol ; Crystal 3			Crystal 3 Crystal 2 Gas	Adiabatic calorimetry	1
POMD	5	Molar enthalpy of transition or fusion, kJ/mol ; Crystal 4			Crystal 4 Crystal 3 Gas	Adiabatic calorimetry	1
POMD	5	Triple point temperature, K ; Crystal 4			Crystal 4 Crystal 3 Gas	Adiabatic calorimetry	1
POMD	5	Triple point temperature, K ; Crystal 3			Crystal 3 Crystal 2 Gas	Adiabatic calorimetry	1
POMD	5	Triple point temperature, K ; Crystal 2			Crystal 2 Crystal 1 Gas	Adiabatic calorimetry	1
POMD	5	Triple point temperature, K ; Crystal 1			Crystal 1 Liquid Gas	Adiabatic calorimetry	1
POMD	5	Molar heat capacity at constant pressure, J/K/mol ; Crystal 4	Temperature, K; Crystal 4	Pressure, kPa; Crystal 4	Crystal 4	Small (less than 1 g) adiabatic calorimetry	34
POMD	5	Molar heat capacity at constant pressure, J/K/mol ; Crystal 3	Temperature, K; Crystal 3	Pressure, kPa; Crystal 3	Crystal 3	Small (less than 1 g) adiabatic calorimetry	4
POMD	5	Molar heat capacity at constant pressure, J/K/mol ; Crystal 2	Temperature, K; Crystal 2	Pressure, kPa; Crystal 2	Crystal 2	Small (less than 1 g) adiabatic calorimetry	3
POMD	5	Molar heat capacity at constant pressure, J/K/mol ; Crystal 1	Temperature, K; Crystal 1	Pressure, kPa; Crystal 1	Crystal 1	Small (less than 1 g) adiabatic calorimetry	5
POMD	5	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small (less than 1 g) adiabatic calorimetry	8
POMD	5	Molar heat capacity at saturation pressure, J/K/mol ; Crystal 4	Temperature, K; Crystal 4		Crystal 4 Gas	Small (less than 1 g) adiabatic calorimetry	285
POMD	5	Molar heat capacity at saturation pressure, J/K/mol ; Crystal 3	Temperature, K; Crystal 3		Crystal 3 Gas	Small (less than 1 g) adiabatic calorimetry	19
POMD	5	Molar heat capacity at saturation pressure, J/K/mol ; Crystal 2	Temperature, K; Crystal 2		Crystal 2 Gas	Small (less than 1 g) adiabatic calorimetry	9
POMD	5	Molar heat capacity at saturation pressure, J/K/mol ; Crystal 1	Temperature, K; Crystal 1		Crystal 1 Gas	Small (less than 1 g) adiabatic calorimetry	21
POMD	5	Molar heat capacity at saturation pressure, J/K/mol ; Liquid	Temperature, K; Liquid		Liquid Gas	Small (less than 1 g) adiabatic calorimetry	82
POMD	5	Molar enthalpy function {Hm(T)-Hm(0)}/T, J/K/mol ; Crystal 4	Temperature, K; Crystal 4	Pressure, kPa; Crystal 4	Crystal 4	Small (less than 1 g) adiabatic calorimetry	34
POMD	5	Molar enthalpy function {Hm(T)-Hm(0)}/T, J/K/mol ; Crystal 3	Temperature, K; Crystal 3	Pressure, kPa; Crystal 3	Crystal 3	Small (less than 1 g) adiabatic calorimetry	4
POMD	5	Molar enthalpy function {Hm(T)-Hm(0)}/T, J/K/mol ; Crystal 2	Temperature, K; Crystal 2	Pressure, kPa; Crystal 2	Crystal 2	Small (less than 1 g) adiabatic calorimetry	3
POMD	5	Molar enthalpy function {Hm(T)-Hm(0)}/T, J/K/mol ; Crystal 1	Temperature, K; Crystal 1	Pressure, kPa; Crystal 1	Crystal 1	Small (less than 1 g) adiabatic calorimetry	5
POMD	5	Molar enthalpy function {Hm(T)-Hm(0)}/T, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small (less than 1 g) adiabatic calorimetry	8
POMD	5	Molar entropy, J/K/mol ; Crystal 4	Temperature, K; Crystal 4	Pressure, kPa; Crystal 4	Crystal 4	Small (less than 1 g) adiabatic calorimetry	34
POMD	5	Molar entropy, J/K/mol ; Crystal 3	Temperature, K; Crystal 3	Pressure, kPa; Crystal 3	Crystal 3	Small (less than 1 g) adiabatic calorimetry	4
POMD	5	Molar entropy, J/K/mol ; Crystal 2	Temperature, K; Crystal 2	Pressure, kPa; Crystal 2	Crystal 2	Small (less than 1 g) adiabatic calorimetry	3
POMD	5	Molar entropy, J/K/mol ; Crystal 1	Temperature, K; Crystal 1	Pressure, kPa; Crystal 1	Crystal 1	Small (less than 1 g) adiabatic calorimetry	5
POMD	5	Molar entropy, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small (less than 1 g) adiabatic calorimetry	8
RXND	5 1 2 3 4	Molar internal energy of reaction at constant volume, kJ/mol				Static bomb calorimetry	1

Thermodynamics Research Center / ThermoML | Thermochimica Acta

Thermochemial Properties of 1-Butyl-3-Methylimidazolium Nitrate

Strechan, A. A.[Aliaksei A.], Kabo, A. G., Paulechka, Y. U., Blokhin, A. V., Kabo, G. J., Shaplov, A. S., Lozinskaya, E. I.

ABSTRACT