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 26554

Components

No. Formula Molar Mass CAS Registry Number Name
1 H2O 18.015 7732-18-5 Water
2 C2H4O2 60.053 64-19-7 Acetic acid
3 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] x2 [mol/mol] y1 [mol/mol] y2 [mol/mol]
372.96 1.00000 0.00000 1.00000 0.00000
390.85 0.00000 1.00000 0.00000 1.00000
477.01 0.00000 0.00000 0.00000 0.00000
396.41 0.22700 0.45010 0.66430 0.31770
398.83 0.21140 0.44300 0.67130 0.30630
401.05 0.17970 0.47300 0.66080 0.31950
403.66 0.19150 0.43420 0.66600 0.30600
405.91 0.17650 0.42760 0.66530 0.30120
406.89 0.16970 0.43320 0.65730 0.30510
407.67 0.18600 0.39990 0.67650 0.27920
408.01 0.16050 0.41960 0.66450 0.29070
409.32 0.13360 0.45870 0.61410 0.34260
410.65 0.14600 0.42930 0.64580 0.30770
410.86 0.14120 0.44960 0.62570 0.33640
415.98 0.07510 0.57600 0.37070 0.59990
415.99 0.04210 0.63580 0.18290 0.79720
416.42 0.04660 0.62050 0.22550 0.74920
417.21 0.05060 0.59590 0.27280 0.69860

(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 32321

Components

No. Formula Molar Mass CAS Registry Number Name
1 H2O 18.015 7732-18-5 Water
2 C2H4O2 60.053 64-19-7 Acetic acid
3 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] x2 [mol/mol] y1 [mol/mol] y2 [mol/mol]
359.95 0.26820 0.32500 0.90110 0.09610
364.45 0.24360 0.32750 0.87180 0.11590
364.85 0.22100 0.31050 0.85310 0.11440
366.52 0.20150 0.31270 0.84100 0.12020
368.44 0.19470 0.31150 0.83590 0.12440
369.23 0.18750 0.31570 0.83120 0.13050
371.97 0.16420 0.31420 0.80650 0.14060
372.26 0.16200 0.31470 0.80990 0.14510
378.06 0.13250 0.31760 0.77400 0.16060
377.93 0.13150 0.31540 0.78620 0.15870
380.35 0.12300 0.31480 0.77590 0.15240
384.87 0.11500 0.27340 0.76860 0.14060
389.31 0.07900 0.26110 0.70050 0.15420
393.07 0.06700 0.26000 0.64300 0.16850
395.49 0.05800 0.25780 0.59960 0.18290
353.00 0.00000 1.00000 0.00000 1.00000
428.65 0.00000 0.00000 0.00000 0.00000

(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

List of All References

Source

Vapor-Liquid Equilibrium Data Overview


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