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 749
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
CH4O |
32.042 |
67-56-1 |
Methanol |
| 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] |
| -221.000 |
0.11400 |
| -378.500 |
0.20700 |
| -433.000 |
0.24300 |
| -596.000 |
0.39500 |
| -642.800 |
0.56600 |
| -519.500 |
0.72400 |
| -277.300 |
0.86700 |
| -67.700 |
0.96600 |
| -61.400 |
0.97200 |
| -26.600 |
0.98700 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Joly R.-D.; Mermet-Dupin M.: Enthalpies de mélange du binaire N-méthylpyrrolidone-méthanol à 25 et 35°C. C.R.Seanc.Acad.Sci.Ser.C Sci.Chim. 280 (1975) 1363-1365 |
Enthalpy of Mixing Data Set 750
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
CH4O |
32.042 |
67-56-1 |
Methanol |
| 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] |
| -229.500 |
0.11400 |
| -389.700 |
0.20700 |
| -431.200 |
0.24300 |
| -632.000 |
0.39500 |
| -643.600 |
0.56600 |
| -523.400 |
0.72400 |
| -271.100 |
0.86700 |
| -65.200 |
0.96600 |
| -58.500 |
0.97200 |
| -24.400 |
0.98700 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Joly R.-D.; Mermet-Dupin M.: Enthalpies de mélange du binaire N-méthylpyrrolidone-méthanol à 25 et 35°C. C.R.Seanc.Acad.Sci.Ser.C Sci.Chim. 280 (1975) 1363-1365 |
Enthalpy of Mixing Data Set 751
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
CH4O |
32.042 |
67-56-1 |
Methanol |
| 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] |
| -18.600 |
0.00830 |
| -37.400 |
0.01660 |
| -141.800 |
0.06640 |
| -264.900 |
0.12950 |
| -453.600 |
0.24840 |
| -648.200 |
0.43200 |
| -588.100 |
0.65980 |
| -551.600 |
0.69340 |
| -297.200 |
0.86980 |
| -157.300 |
0.93870 |
| -82.850 |
0.96990 |
| -42.500 |
0.98490 |
| -21.740 |
0.99240 |
| -10.990 |
0.99600 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Murakami S.; Tanaka R.; Fujishiro R.: I. Enthalpies of Transfer of 1-Methyl-2-pyrrolidinone from Water to Aqueous Methanol. J.Solution Chem. 3 (1974) 71-79 |
Diagrams
List of All References
| Source |
| Joly R.-D.; Mermet-Dupin M.: Enthalpies de mélange du binaire N-méthylpyrrolidone-méthanol à 25 et 35°C. C.R.Seanc.Acad.Sci.Ser.C Sci.Chim. 280 (1975) 1363-1365 |
| Murakami S.; Tanaka R.; Fujishiro R.: I. Enthalpies of Transfer of 1-Methyl-2-pyrrolidinone from Water to Aqueous Methanol. J.Solution Chem. 3 (1974) 71-79 |
Excess Enthalpy Data Overview
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