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 26552

Components

No. Formula Molar Mass CAS Registry Number Name
1 C2H4O2 60.053 64-19-7 Acetic acid
2 C5H9NO 99.133 872-50-4 N-Methyl-2-pyrrolidone
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Constant Value

Pressure 101.33 kPa

Data Table

T [K] x1 [mol/mol] y1 [mol/mol]
477.01 0.00000 0.00000
475.02 0.06000 0.11230
472.68 0.10810 0.21120
470.40 0.17610 0.32660
467.13 0.24430 0.46060
463.42 0.30350 0.58340
460.54 0.34520 0.65930
456.52 0.39240 0.72310
451.92 0.44180 0.79100
448.17 0.46900 0.81860
444.28 0.50300 0.87300
440.81 0.53900 0.90450
437.56 0.55980 0.91670
435.11 0.58030 0.93400
430.83 0.61040 0.95060
424.42 0.65560 0.96310
420.45 0.68640 0.96830
417.71 0.71120 0.98080
411.22 0.75490 0.98220
407.99 0.79350 0.98770
403.67 0.83190 0.99000
400.75 0.86610 0.99310
390.85 1.00000 1.00000

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

Reference

Source
Chang W.; Wan H.; Guan G.; Yao H.: Isobaric Vapor-Liquid Equilibria for Water + Acetic Acid + (N-Methyl Pyrrolidone or n-Methyl Acetamide). Fluid Phase Equilib. 242 (2006) 204-209


Vapor-Liquid Equilibrium Data Set 32320

Components

No. Formula Molar Mass CAS Registry Number Name
1 C2H4O2 60.053 64-19-7 Acetic acid
2 C5H9NO 99.133 872-50-4 N-Methyl-2-pyrrolidone
Search the DDB for all data of this mixture

Constant Value

Pressure 26.67 kPa

Data Table

T [K] x1 [mol/mol] y1 [mol/mol]
428.65 0.00000 0.00000
428.35 0.11280 0.16270
427.80 0.14900 0.22940
426.80 0.19410 0.32070
425.50 0.23680 0.41290
423.15 0.28940 0.52870
419.95 0.34530 0.64620
414.15 0.41270 0.76880
403.50 0.50910 0.89270
390.85 0.59680 0.95500
374.65 0.73120 0.99170
364.10 0.81750 0.99790
353.00 1.00000 1.00000

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

Reference

Source
Ping L.-J.; Peng Y.; Mao J.-W.: Vapor-Liquid Equilibria of Acetic Acid-Water-N-Methylpyrrolidone System at 26.67 kPa. Gaoxiao-huaxue-gongcheng-xuebao 25 (2011) 554-557

Diagrams

Vapor-Liquid Equilibrium of Acetic acid+N-Methyl-2-pyrrolidone
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Vapor-Liquid Equilibrium of Acetic acid+N-Methyl-2-pyrrolidone
See larger image

List of All References

Source
Chang W.; Wan H.; Guan G.; Yao H.: Isobaric Vapor-Liquid Equilibria for Water + Acetic Acid + (N-Methyl Pyrrolidone or n-Methyl Acetamide). Fluid Phase Equilib. 242 (2006) 204-209
Ping L.-J.; Peng Y.; Mao J.-W.: Vapor-Liquid Equilibria of Acetic Acid-Water-N-Methylpyrrolidone System at 26.67 kPa. Gaoxiao-huaxue-gongcheng-xuebao 25 (2011) 554-557

Vapor-Liquid Equilibrium Data Overview


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