ABSTRACT

Molar enthalpies of vaporization of aliphatic poly-amines: 1,4-dimethylpiperazine [106-58-1], 1-(2-aminoethyl)- piperazine, [140-31-8], 1-(2-aminoethyl)-4-methyl-piperazine [934-98-5], and triethylenetetramine [112-24-3] were obtained from the temperature dependence of the vapour pressure measured by the transpiration method. A large number of the primary experimental results on temperature dependences of vapour pressures of the parent compounds have been collected from the literature and have been treated uniformly in order to derive vaporization enthalpies of poly-amines at the reference temperature 298.15 K. An internal consistency check was performed on enthalpy of vaporization values for polyamines studied in this work.

Compounds

#	Formula	Name
1	C6H14N2	1,4-dimethylpiperazine
2	C6H15N3	N-(.beta.-aminoethyl)piperazine)
3	C7H17N3	1-(2-aminoethyl)-4-methyl-piperazine
4	C6H18N4	1,2-ethanediamine, N,N'-bis(2-aminoethyl)-

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	Phase	Method	#Points
POMD	1	Molar enthalpy of vaporization or sublimation, kJ/mol ; Liquid	Temperature, K; Liquid	Liquid Gas	Derived from vapor pressure data	1
POMD	1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Transpiration	18
POMD	2	Molar enthalpy of vaporization or sublimation, kJ/mol ; Liquid	Temperature, K; Liquid	Liquid Gas	Derived from vapor pressure data	1
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Transpiration	22
POMD	3	Molar enthalpy of vaporization or sublimation, kJ/mol ; Liquid	Temperature, K; Liquid	Liquid Gas	Derived by Second law	1
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Transpiration	17
POMD	4	Molar enthalpy of vaporization or sublimation, kJ/mol ; Liquid	Temperature, K; Liquid	Liquid Gas	Derived by Second law	1
POMD	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Transpiration	27

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Vapour pressure and enthalpy of vaporization of aliphatic poly-amines

Efimova, A. A., Emel'yanenko, V. N.[Vladimir N.], Verevkin, S. P.[Sergey P.], Chernyak, Y.[Yury]

ABSTRACT