ABSTRACT

Precise temperature-composition (T-x) data and excess molar enthalpies () of binary mixtures of N-methyl-2-pyrrolidone (NMP) with chloroethanes and ethenes were measured by using an ebulliometer and a solution calorimeter. The chloroethanes are 1,2-dichloroethane, 1,1,1-trichloroethane, and 1,1,2,2-tetrachloroethane. The chloroethenes are trichloroethene and tetrachloroethene. The T-x data were used to compute vapor-phase composition and activity coefficients with the Wilson model. The experimental () values are negative for four binary systems over the entire range of composition. An inversion in sign from negative to positive for the system N-methyl-2-pyrrolidone + tetrachloroethene was observed.

Compounds

#	Formula	Name
1	C5H9NO	N-methylpyrrolidone
2	C2H4Cl2	1,2-dichloroethane
3	C2H3Cl3	1,1,1-trichloroethane
4	C2H2Cl4	1,1,2,2-tetrachloroethane
5	C2HCl3	trichloroethene
6	C2Cl4	tetrachloroethene

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	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid		Liquid Gas	EBULLIO:dP:0.133	1
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	PYCNOM:dT:0.2	1
POMD	2	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid		Liquid Gas	EBULLIO:dP:0.133	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	PYCNOM:dT:0.2	1
POMD	3	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid		Liquid Gas	EBULLIO:dP:0.133	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	PYCNOM:dT:0.2	1
POMD	4	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid		Liquid Gas	EBULLIO:dP:0.133	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	PYCNOM:dT:0.2	1
POMD	5	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid		Liquid Gas	EBULLIO:dP:0.133	1
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	PYCNOM:dT:0.2	1
POMD	6	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid		Liquid Gas	EBULLIO:dP:0.133	1
POMD	6	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	PYCNOM:dT:0.2	1
POMD	2 1	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	FLOW:UFactor:4	15
POMD	2 1	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid Gas	EBULLIO:UFactor:16	10
POMD	3 1	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	FLOW:UFactor:4	20
POMD	3 1	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid Gas	EBULLIO:UFactor:16	10
POMD	4 1	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	FLOW:UFactor:4	23
POMD	4 1	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid Gas	EBULLIO:UFactor:16	10
POMD	5 1	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 5; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	FLOW:UFactor:4	14
POMD	5 1	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid Gas	EBULLIO:UFactor:16	10
POMD	6 1	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 6; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	FLOW:UFactor:4	13
POMD	6 1	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 6; Liquid	Pressure, kPa; Liquid	Liquid Gas	EBULLIO:UFactor:16	10

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

Vapor-Liquid Equilibria and Excess Molar Enthalpies for N-Methyl-2-pyrrolidone with Chloroethanes and Chloroethenes

Gnanakumari, P., Rao, M. V. P., Prasad, D.H.L., Kumar, Y. V. L. R.[Y.V.L.Ravi]

ABSTRACT