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 3740
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
C8H10 |
106.167 |
106-42-3 |
p-Xylene |
| 2 |
C8H10 |
106.167 |
108-38-3 |
m-Xylene |
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Miscibility gap: No
Constant Value
Data Table
| hE [J/mol] |
x1 [mol/mol] |
| -0.879 |
0.03510 |
| -1.424 |
0.05170 |
| -2.470 |
0.09830 |
| -3.140 |
0.12690 |
| -3.936 |
0.16660 |
| -4.605 |
0.20280 |
| -5.317 |
0.24650 |
| -5.820 |
0.28560 |
| -6.238 |
0.32090 |
| -6.531 |
0.35280 |
| -6.824 |
0.39550 |
| -6.950 |
0.42090 |
| -7.076 |
0.45530 |
| -7.118 |
0.47100 |
| -7.159 |
0.48100 |
| -7.118 |
0.49920 |
| -7.076 |
0.51350 |
| -7.034 |
0.53920 |
| -6.866 |
0.57980 |
| -6.699 |
0.61290 |
| -6.531 |
0.63450 |
| -6.322 |
0.65780 |
| -5.987 |
0.69160 |
| -5.401 |
0.73910 |
| -4.940 |
0.77090 |
| -4.354 |
0.80550 |
| -3.391 |
0.85670 |
| -2.512 |
0.89970 |
| -1.884 |
0.93080 |
| -0.921 |
0.96420 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Holt D.L.; Smith B.D.: Measurement of Excess Enthalpies with Tronac Titration Calorimeter. Data for Some C8 Aromatic Binaries. J.Chem.Eng.Data 19 (1974) 129-133 |
Enthalpy of Mixing Data Set 3741
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
C8H10 |
106.167 |
106-42-3 |
p-Xylene |
| 2 |
C8H10 |
106.167 |
108-38-3 |
m-Xylene |
Search the DDB for all data of this mixture
Miscibility gap: No
Constant Value
Data Table
| hE [J/mol] |
x1 [mol/mol] |
| -1.300 |
0.03980 |
| -1.200 |
0.04420 |
| -2.600 |
0.08690 |
| -2.800 |
0.10240 |
| -4.000 |
0.15360 |
| -4.400 |
0.18280 |
| -5.700 |
0.23960 |
| -5.800 |
0.25990 |
| -6.600 |
0.30950 |
| -6.800 |
0.33670 |
| -7.200 |
0.38360 |
| -7.500 |
0.40960 |
| -7.700 |
0.43250 |
| -7.500 |
0.44820 |
| -7.600 |
0.44990 |
| -7.600 |
0.48730 |
| -7.700 |
0.50280 |
| -7.500 |
0.54510 |
| -7.500 |
0.56350 |
| -7.300 |
0.60840 |
| -6.800 |
0.62860 |
| -6.600 |
0.67620 |
| -5.900 |
0.69760 |
| -5.600 |
0.74890 |
| -5.700 |
0.76990 |
| -4.100 |
0.83420 |
| -4.000 |
0.84570 |
| -2.600 |
0.90690 |
| -2.600 |
0.91660 |
| -1.000 |
0.96210 |
| -1.100 |
0.96660 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Lam V.T.; Murakami S.; Benson G.C.: III. Excess Enthalpies and Volumes of Isomeric Xylene Mixtures at 25°C. J.Chem.Thermodyn. 2 (1970) 17-25 |
Enthalpy of Mixing Data Set 12157
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
C8H10 |
106.167 |
106-42-3 |
p-Xylene |
| 2 |
C8H10 |
106.167 |
108-38-3 |
m-Xylene |
Search the DDB for all data of this mixture
Miscibility gap: No
Constant Value
Data Table
| hE [J/mol] |
x1 [mol/mol] |
| -1.340 |
0.24600 |
| -10.886 |
0.70800 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Kremann R.; Meingast R.; Gugl F.: II.Mitteilung: Die Volumänderungen und Wärmeerscheinungen bei Bildung binärer Gemische. Monatsh.Chemie u.verw.Teil.and.Wiss. 35 (1914) 1235-1322 |
Diagrams
List of All References
| Source |
| Holt D.L.; Smith B.D.: Measurement of Excess Enthalpies with Tronac Titration Calorimeter. Data for Some C8 Aromatic Binaries. J.Chem.Eng.Data 19 (1974) 129-133 |
| Lam V.T.; Murakami S.; Benson G.C.: III. Excess Enthalpies and Volumes of Isomeric Xylene Mixtures at 25°C. J.Chem.Thermodyn. 2 (1970) 17-25 |
| Kremann R.; Meingast R.; Gugl F.: II.Mitteilung: Die Volumänderungen und Wärmeerscheinungen bei Bildung binärer Gemische. Monatsh.Chemie u.verw.Teil.and.Wiss. 35 (1914) 1235-1322 |
Excess Enthalpy Data Overview
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