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 2227
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
C6H12 |
84.161 |
110-82-7 |
Cyclohexane |
| 2 |
C5H9NO |
99.133 |
872-50-4 |
N-Methyl-2-pyrrolidone |
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Miscibility gap: No
Constant Value
Data Table
| hE [J/mol] |
x1 [mol/mol] |
| 628.900 |
0.10050 |
| 944.900 |
0.18210 |
| 1185.800 |
0.25060 |
| 1261.600 |
0.30850 |
| 1313.800 |
0.35810 |
| 1335.200 |
0.40080 |
| 1350.700 |
0.43840 |
| 1360.300 |
0.47150 |
| 1355.400 |
0.50480 |
| 1352.800 |
0.54330 |
| 1335.400 |
0.58790 |
| 1345.600 |
0.64090 |
| 1300.800 |
0.70380 |
| 1162.500 |
0.78110 |
| 896.900 |
0.87750 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Gustin J.-L.; Renon H.: Heats of Mixing of Binary Mixtures of N-Methylpyrrolidone, Ethanolamine, n-Heptane, Cyclohexane, and Benzene by Differential Flow Calorimeter. J.Chem.Eng.Data 18 (1973) 164-166 |
Enthalpy of Mixing Data Set 7681
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
C6H12 |
84.161 |
110-82-7 |
Cyclohexane |
| 2 |
C5H9NO |
99.133 |
872-50-4 |
N-Methyl-2-pyrrolidone |
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Miscibility gap: No
Constant Value
| Temperature |
363.150 |
K |
| Pressure |
7.000 |
bar |
Data Table
| hE [J/mol] |
x1 [mol/mol] |
| 285.195 |
0.04480 |
| 540.162 |
0.09020 |
| 769.762 |
0.13600 |
| 982.101 |
0.18240 |
| 976.933 |
0.18240 |
| 1310.990 |
0.27660 |
| 1544.550 |
0.37290 |
| 1663.490 |
0.47150 |
| 1662.660 |
0.47150 |
| 1687.680 |
0.57230 |
| 1591.980 |
0.67550 |
| 1358.820 |
0.78110 |
| 1159.360 |
0.83490 |
| 896.294 |
0.88920 |
| 535.187 |
0.94430 |
| 301.145 |
0.97210 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Gmehling J.; Meents B.: Excess Enthalpies of 1-Methyl-2-pyrrolidinone + Cyclohexane, + Benzene, + Toluene, or + 1,4-Dimethylbenzene. Int.Data Series Sel.Data Mixtures Ser. A 1992 (1992) 210-213 |
Enthalpy of Mixing Data Set 10698
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
C6H12 |
84.161 |
110-82-7 |
Cyclohexane |
| 2 |
C5H9NO |
99.133 |
872-50-4 |
N-Methyl-2-pyrrolidone |
Search the DDB for all data of this mixture
Miscibility gap: No
Constant Value
Data Table
| hE [J/mol] |
x1 [mol/mol] |
| 195.000 |
0.02700 |
| 402.000 |
0.04600 |
| 1780.000 |
0.27800 |
| 1730.000 |
0.46800 |
| 1160.000 |
0.66300 |
| 1390.000 |
0.78500 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Kedrina N.N.; Semenov L.V.; Gaile A.A.: Mischungswärme der Kohlenwasserstoffe mit polaren Lösungmitteln. Oniitekhim (1981) 1-10 |
Diagrams
List of All References
| Source |
| Gustin J.-L.; Renon H.: Heats of Mixing of Binary Mixtures of N-Methylpyrrolidone, Ethanolamine, n-Heptane, Cyclohexane, and Benzene by Differential Flow Calorimeter. J.Chem.Eng.Data 18 (1973) 164-166 |
| Kedrina N.N.; Semenov L.V.; Gaile A.A.: Mischungswärme der Kohlenwasserstoffe mit polaren Lösungmitteln. Oniitekhim (1981) 1-10 |
| Gmehling J.; Meents B.: Excess Enthalpies of 1-Methyl-2-pyrrolidinone + Cyclohexane, + Benzene, + Toluene, or + 1,4-Dimethylbenzene. Int.Data Series Sel.Data Mixtures Ser. A 1992 (1992) 210-213 |
Excess Enthalpy Data Overview
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