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 10014
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
C2H6O |
46.069 |
64-17-5 |
Ethanol |
| 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] |
| -5.900 |
0.02950 |
| -8.400 |
0.04590 |
| -9.600 |
0.05160 |
| -19.900 |
0.11200 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Sitnyakovskii I.B.; Semenov L.V.; Gaile A.A.; Koldobovskaya L.L.: Intermolecular interactions of N-methylpyrrolidone with oxygen-containing organic substances. Zh.Prikl.Khim. 63 (1990) 898-902 |
Enthalpy of Mixing Data Set 16877
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
C5H9NO |
99.133 |
872-50-4 |
N-Methyl-2-pyrrolidone |
| 2 |
C2H6O |
46.069 |
64-17-5 |
Ethanol |
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Miscibility gap: No
Constant Value
| Temperature |
298.150 |
K |
| Pressure |
1.0132 |
bar |
Data Table
| hE [J/mol] |
x1 [mol/mol] |
| 48.900 |
0.14470 |
| 57.200 |
0.18490 |
| 65.000 |
0.24130 |
| 61.200 |
0.35210 |
| 16.200 |
0.54730 |
| 15.700 |
0.56130 |
| 7.700 |
0.57400 |
| -12.700 |
0.68050 |
| -15.800 |
0.70990 |
| -20.300 |
0.71760 |
| -24.900 |
0.74060 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Letcher T.M.; Lachwa J.; Domanska U.: The excess molar enthalpies and volumes of (N-methyl-2-pyrrolidinone + an alkan-a-ol) at T = 298.15 K. J.Chem.Thermodyn. 34 (2002) 1581-1599 |
Enthalpy of Mixing Data Set 21962
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
C5H9NO |
99.133 |
872-50-4 |
N-Methyl-2-pyrrolidone |
| 2 |
C2H6O |
46.069 |
64-17-5 |
Ethanol |
Search the DDB for all data of this mixture
Miscibility gap: No
Constant Value
| Temperature |
298.150 |
K |
| Pressure |
1.0132 |
bar |
Data Table
| hE [J/mol] |
x1 [mol/mol] |
| 1.600 |
0.00269 |
| 1.700 |
0.002804 |
| 1.600 |
0.002817 |
| 1.700 |
0.002842 |
| 2.000 |
0.002893 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Kimura F.; Sugiura T.; Ogawa H.: Solvation of N-methyl-2-pyrrolidone and N,N-dimethylpropanamide in cyclohexane, heptane, n-alkan-1-ols(C1–C4) and water at 298.15 K. Thermochim.Acta 573 (2013) 206-212 |
Diagrams
List of All References
| Source |
| Sitnyakovskii I.B.; Semenov L.V.; Gaile A.A.; Koldobovskaya L.L.: Intermolecular interactions of N-methylpyrrolidone with oxygen-containing organic substances. Zh.Prikl.Khim. 63 (1990) 898-902 |
| Letcher T.M.; Lachwa J.; Domanska U.: The excess molar enthalpies and volumes of (N-methyl-2-pyrrolidinone + an alkan-a-ol) at T = 298.15 K. J.Chem.Thermodyn. 34 (2002) 1581-1599 |
| Kimura F.; Sugiura T.; Ogawa H.: Solvation of N-methyl-2-pyrrolidone and N,N-dimethylpropanamide in cyclohexane, heptane, n-alkan-1-ols(C1–C4) and water at 298.15 K. Thermochim.Acta 573 (2013) 206-212 |
Excess Enthalpy Data Overview
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