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 10280
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
C2H4O2 |
60.053 |
64-19-7 |
Acetic acid |
| 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] |
| -968.000 |
0.09960 |
| -1895.000 |
0.20210 |
| -3124.000 |
0.36320 |
| -3135.000 |
0.36360 |
| -3461.000 |
0.42300 |
| -3618.000 |
0.46980 |
| -3653.000 |
0.48230 |
| -3660.000 |
0.48660 |
| -3681.000 |
0.49800 |
| -3674.000 |
0.49860 |
| -3667.000 |
0.52040 |
| -3657.000 |
0.53400 |
| -3662.000 |
0.54030 |
| -3560.000 |
0.57550 |
| -3503.000 |
0.58900 |
| -2826.000 |
0.70100 |
| -2016.000 |
0.79950 |
| -1515.000 |
0.84970 |
| -529.000 |
0.95060 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Ryabtseva N.V.; Rudin V.Ya.; Kalinichenko V.P.: Kalorimetrische Untersuchung der Mischungsenthalpie in binären Systemen N-Methylpyrrolidon-Essigsäure und N-Methylpyrrolidon-Wasser. Oniitekhim (1982) 1-8 |
Enthalpy of Mixing Data Set 10281
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
C2H4O2 |
60.053 |
64-19-7 |
Acetic acid |
| 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] |
| -1796.000 |
0.19160 |
| -3444.000 |
0.42200 |
| -3646.000 |
0.49010 |
| -3654.000 |
0.51510 |
| -3645.000 |
0.53200 |
| -3543.000 |
0.57710 |
| -3530.000 |
0.57760 |
| -2026.000 |
0.79570 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Ryabtseva N.V.; Rudin V.Ya.; Kalinichenko V.P.: Kalorimetrische Untersuchung der Mischungsenthalpie in binären Systemen N-Methylpyrrolidon-Essigsäure und N-Methylpyrrolidon-Wasser. Oniitekhim (1982) 1-8 |
Diagrams
List of All References
| Source |
| Ryabtseva N.V.; Rudin V.Ya.; Kalinichenko V.P.: Kalorimetrische Untersuchung der Mischungsenthalpie in binären Systemen N-Methylpyrrolidon-Essigsäure und N-Methylpyrrolidon-Wasser. Oniitekhim (1982) 1-8 |
Excess Enthalpy Data Overview
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