Dortmund Data Bank

Vapor-Liquid Equilibrium Data

The experimental data shown in these pages are freely available and have been published already in the DDB Explorer Edition. The data represent a small sub list of all available data in the Dortmund Data Bank. For more data or any further information please search the DDB or contact DDBST.

Vapor-Liquid Equilibrium Data Set 1290

Components

No. Formula Molar Mass CAS Registry Number Name
1 H2O 18.015 7732-18-5 Water
2 C5H9NO 99.133 872-50-4 N-Methyl-2-pyrrolidone
Search the DDB for all data of this mixture

Constant Value

Pressure 101.33 kPa

Data Table

T [K] x1 [mol/mol] y1 [mol/mol]
433.15 0.09400 0.73000
421.25 0.15300 0.82000
413.15 0.20600 0.87400
404.95 0.29100 0.91400
394.15 0.42500 0.95000
390.75 0.48000 0.95800
383.95 0.62900 0.97700
379.45 0.75300 0.98700
377.15 0.83500 0.99200
376.65 0.84400 0.99300
374.95 0.90900 0.99600

(T - temperature, x - liquid mole fraction, y - vapor mole fraction)

Reference

Source
Golubkov Yu.V.; Repneva T.G.; Raginskaya L.M.: N-Methyl-2-Pyrrolidon - Wasser. Prom.Sint.Kaucuka (1975) 1-3


Vapor-Liquid Equilibrium Data Set 3300

Components

No. Formula Molar Mass CAS Registry Number Name
1 H2O 18.015 7732-18-5 Water
2 C5H9NO 99.133 872-50-4 N-Methyl-2-pyrrolidone
Search the DDB for all data of this mixture

Constant Value

Pressure 101.33 kPa

Data Table

x1 [mol/mol] y1 [mol/mol]
0.01470 0.07150
0.02500 0.23600
0.04250 0.45300
0.05770 0.47700
0.11400 0.78800
0.12300 0.87000
0.16500 0.94500
0.44000 0.97800
0.65000 0.98000
0.79800 0.99000
0.90500 0.99000
0.93700 0.99200
0.97500 0.99500

(x - liquid mole fraction, y - vapor mole fraction)

Reference

Source
Bogoslovskii V.E.; Mikhalyuk G.I.; Shamolin A.I.: Vapor-Liquid Equilibrium in the Systems Water-Dimethylacetamide, Water-Dimethylformamide and Water-n-Methylpyridine. J.Appl.Chem.USSR 45 (1972) 1197-1199


Vapor-Liquid Equilibrium Data Set 4455

Components

No. Formula Molar Mass CAS Registry Number Name
1 H2O 18.015 7732-18-5 Water
2 C5H9NO 99.133 872-50-4 N-Methyl-2-pyrrolidone
Search the DDB for all data of this mixture

Constant Value

Pressure 53.33 kPa

Data Table

T [K] x1 [mol/mol] y1 [mol/mol]
414.45 0.08100 0.72700
393.15 0.19200 0.87800
383.95 0.28400 0.92000
378.15 0.35700 0.94200
371.25 0.48200 0.96600
368.15 0.55300 0.97200
363.55 0.68000 0.98400
359.95 0.80800 0.99200
357.65 0.89700 0.99600

(T - temperature, x - liquid mole fraction, y - vapor mole fraction)

Reference

Source
Golubkov Yu.V.; Repneva T.G.; Raginskaya L.M.: N-Methyl-2-Pyrrolidon - Wasser. Prom.Sint.Kaucuka (1975) 1-3

Diagrams

Vapor-Liquid Equilibrium of Water+N-Methyl-2-pyrrolidone
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Vapor-Liquid Equilibrium of Water+N-Methyl-2-pyrrolidone
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List of All References

Source
Bogoslovskii V.E.; Mikhalyuk G.I.; Shamolin A.I.: Vapor-Liquid Equilibrium in the Systems Water-Dimethylacetamide, Water-Dimethylformamide and Water-n-Methylpyridine. J.Appl.Chem.USSR 45 (1972) 1197-1199
Golubkov Yu.V.; Repneva T.G.; Raginskaya L.M.: N-Methyl-2-Pyrrolidon - Wasser. Prom.Sint.Kaucuka (1975) 1-3

Vapor-Liquid Equilibrium Data Overview


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