Dortmund Data Bank

Excess Enthalpy 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.


Enthalpy of Mixing Data Set 9142

Components

No. Formula Molar Mass CAS Registry Number Name
1 C6H12 84.161 592-41-6 1-Hexene
2 H2O 18.015 7732-18-5 Water
3 C5H9NO 99.133 872-50-4 N-Methyl-2-pyrrolidone
Search the DDB for all data of this mixture

Miscibility gap: No

Constant Value

Temperature 416.290 K
Pressure 24.000 bar

Data Table

hE [J/mol] x1 [mol/mol] x2 [mol/mol]
-3.740 0.03450 0.14040
154.630 0.06330 0.24340
156.570 0.06350 0.24340
187.370 0.07020 0.13520
191.368 0.07020 0.13520
191.348 0.07020 0.13520
351.070 0.09720 0.23460
356.580 0.09720 0.23460
360.916 0.10710 0.12980
576.320 0.13240 0.22550
520.053 0.14520 0.12430
725.480 0.16910 0.21590
726.680 0.16910 0.21590
648.456 0.18470 0.11850
891.750 0.20730 0.20600
774.122 0.22560 0.11260
1127.150 0.28920 0.18470
960.021 0.31180 0.10010
1270.180 0.37900 0.16140
1077.780 0.40460 0.08660
1339.290 0.47790 0.13570
1119.010 0.50480 0.07200
1330.450 0.58750 0.10720
1085.390 0.61330 0.05620
1210.960 0.70920 0.07570
963.781 0.73110 0.03910
1068.320 0.77570 0.05830
823.484 0.79380 0.03000
823.293 0.79380 0.03000
883.140 0.84600 0.04000
888.220 0.84600 0.04000
667.124 0.85950 0.02040
655.403 0.85950 0.02040
545.550 0.92060 0.02060
538.610 0.92060 0.02060
401.438 0.92810 0.01050
395.999 0.92810 0.01050
330.330 0.95970 0.01050
220.814 0.96360 0.00530
224.610 0.96360 0.00530

(hE - excess enthalpy, x - liquid mole fraction)

Reference

Source
Fischer K.; Gmehling J.: Influence of Water on the Vapor-Liquid Equilibria, Activity Coefficients at Infinite Dilution and Enthalpies of Mixing for Mixtures of n-Methyl-2-Pyrrolidone with C5 or C6 Hydrocarbons. Fluid Phase Equilib. 218 (2004) 69-76


Enthalpy of Mixing Data Set 9143

Components

No. Formula Molar Mass CAS Registry Number Name
1 C6H12 84.161 592-41-6 1-Hexene
2 H2O 18.015 7732-18-5 Water
3 C5H9NO 99.133 872-50-4 N-Methyl-2-pyrrolidone
Search the DDB for all data of this mixture

Miscibility gap: No

Constant Value

Temperature 363.150 K
Pressure 8.000 bar

Data Table

hE [J/mol] x1 [mol/mol] x2 [mol/mol]
-345.778 0.06260 0.24360
-71.903 0.06940 0.13530
80.984 0.13050 0.22600
262.221 0.14370 0.12450
394.073 0.20470 0.20670
515.448 0.22350 0.11290
628.568 0.28590 0.18560
707.653 0.30930 0.10040
773.789 0.37520 0.16240
811.451 0.40170 0.08700
832.090 0.47400 0.13670
829.729 0.50180 0.07240
778.684 0.58360 0.10820
776.737 0.61050 0.05660
644.827 0.70610 0.07640
624.737 0.72880 0.03940
460.536 0.84390 0.04060
393.673 0.85810 0.02060
357.288 0.91950 0.02090
234.904 0.92730 0.01060

(hE - excess enthalpy, x - liquid mole fraction)

Reference

Source
Fischer K.; Gmehling J.: Influence of Water on the Vapor-Liquid Equilibria, Activity Coefficients at Infinite Dilution and Enthalpies of Mixing for Mixtures of n-Methyl-2-Pyrrolidone with C5 or C6 Hydrocarbons. Fluid Phase Equilib. 218 (2004) 69-76

List of All References

Source
Fischer K.; Gmehling J.: Influence of Water on the Vapor-Liquid Equilibria, Activity Coefficients at Infinite Dilution and Enthalpies of Mixing for Mixtures of n-Methyl-2-Pyrrolidone with C5 or C6 Hydrocarbons. Fluid Phase Equilib. 218 (2004) 69-76

Excess Enthalpy Data Overview


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