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 7115
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
C8H10 |
106.167 |
106-42-3 |
p-Xylene |
| 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] |
| -3.600 |
0.09000 |
| -8.400 |
0.13490 |
| -2.600 |
0.29940 |
| 14.100 |
0.43900 |
| 18.400 |
0.46980 |
| 33.400 |
0.49220 |
| 36.000 |
0.55020 |
| 53.600 |
0.61990 |
| 69.700 |
0.80130 |
| 77.700 |
0.82110 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Hammerl I.; Vogel A.; Bittrich H.-J.: Exzeßenthalpien von N-Methylpyrrolidon- (NMP) und N-Methylcaprolactam- (NMC) Systemen. Z.Phys.Chem.(Leipzig) 271 (1990) 477-482 |
Enthalpy of Mixing Data Set 7116
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
C8H10 |
106.167 |
106-42-3 |
p-Xylene |
| 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] |
| 24.200 |
0.12970 |
| 56.000 |
0.23340 |
| 89.100 |
0.35400 |
| 98.300 |
0.42410 |
| 109.900 |
0.44380 |
| 150.000 |
0.58060 |
| 191.100 |
0.76630 |
| 180.600 |
0.80710 |
| 128.600 |
0.90160 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Hammerl I.; Vogel A.; Bittrich H.-J.: Exzeßenthalpien von N-Methylpyrrolidon- (NMP) und N-Methylcaprolactam- (NMC) Systemen. Z.Phys.Chem.(Leipzig) 271 (1990) 477-482 |
Enthalpy of Mixing Data Set 7684
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
C8H10 |
106.167 |
106-42-3 |
p-Xylene |
| 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
| Temperature |
363.150 |
K |
| Pressure |
7.000 |
bar |
Data Table
| hE [J/mol] |
x1 [mol/mol] |
| 20.517 |
0.08000 |
| 20.384 |
0.08000 |
| 44.051 |
0.16370 |
| 44.154 |
0.16370 |
| 71.109 |
0.25120 |
| 98.440 |
0.34290 |
| 125.702 |
0.43910 |
| 152.734 |
0.54010 |
| 172.184 |
0.64620 |
| 174.951 |
0.75790 |
| 162.248 |
0.81600 |
| 152.612 |
0.84570 |
| 137.346 |
0.87570 |
| 116.064 |
0.90610 |
| 87.836 |
0.93700 |
| 49.704 |
0.96830 |
(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 |
Diagrams
List of All References
| Source |
| Hammerl I.; Vogel A.; Bittrich H.-J.: Exzeßenthalpien von N-Methylpyrrolidon- (NMP) und N-Methylcaprolactam- (NMC) Systemen. Z.Phys.Chem.(Leipzig) 271 (1990) 477-482 |
| 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
© DDBST GmbH
