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 1094
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
C4H8O |
72.107 |
109-99-9 |
Tetrahydrofuran |
| 2 |
C2H6O |
46.069 |
64-17-5 |
Ethanol |
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Miscibility gap: No
Constant Value
Data Table
| hE [J/mol] |
x1 [mol/mol] |
| 14.654 |
0.00670 |
| 421.192 |
0.86300 |
| 236.973 |
0.93370 |
| 80.387 |
0.97920 |
| 28.470 |
0.99310 |
| 10.886 |
0.99710 |
| 3.182 |
0.99900 |
| 0.921 |
0.99970 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Merkel K.: Übermolekülbildung in Flüssigkeiten. Nova Acta Leopoldina 9 (1940) 243-303 |
Enthalpy of Mixing Data Set 6552
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
C4H8O |
72.107 |
109-99-9 |
Tetrahydrofuran |
| 2 |
C2H6O |
46.069 |
64-17-5 |
Ethanol |
Search the DDB for all data of this mixture
Miscibility gap: No
Constant Value
Data Table
| hE [J/mol] |
x1 [mol/mol] |
| 257.200 |
0.09950 |
| 381.200 |
0.15290 |
| 490.300 |
0.20850 |
| 593.500 |
0.26650 |
| 681.300 |
0.32710 |
| 738.600 |
0.37420 |
| 783.500 |
0.42300 |
| 816.100 |
0.47340 |
| 835.200 |
0.52560 |
| 836.500 |
0.57960 |
| 820.500 |
0.63560 |
| 783.300 |
0.69360 |
| 713.100 |
0.75380 |
| 604.200 |
0.81630 |
| 504.500 |
0.85930 |
| 385.400 |
0.90340 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Chao J.P.; Dai M.: Excess enthalpies of (an alkan-1-ol + tetrahydrofuran or cyclohexanone) at 298.15 K. J.Chem.Thermodyn. 21 (1989) 977-983 |
Enthalpy of Mixing Data Set 10368
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
C4H8O |
72.107 |
109-99-9 |
Tetrahydrofuran |
| 2 |
C2H6O |
46.069 |
64-17-5 |
Ethanol |
Search the DDB for all data of this mixture
Miscibility gap: No
Constant Value
Data Table
| hE [J/mol] |
x1 [mol/mol] |
| 94.100 |
0.03820 |
| 177.900 |
0.07390 |
| 189.400 |
0.07750 |
| 282.100 |
0.11810 |
| 349.200 |
0.15210 |
| 412.600 |
0.18130 |
| 507.400 |
0.23530 |
| 558.000 |
0.26620 |
| 642.800 |
0.32370 |
| 738.900 |
0.41790 |
| 779.200 |
0.47450 |
| 796.300 |
0.51850 |
| 799.200 |
0.55100 |
| 785.400 |
0.62620 |
| 696.000 |
0.74170 |
| 632.900 |
0.78900 |
| 593.200 |
0.81400 |
| 531.600 |
0.83940 |
| 468.800 |
0.86600 |
| 413.400 |
0.89040 |
| 357.000 |
0.90980 |
| 334.800 |
0.91720 |
| 290.000 |
0.92950 |
| 235.200 |
0.94430 |
| 181.100 |
0.95940 |
| 127.900 |
0.97190 |
| 95.200 |
0.97960 |
| 51.000 |
0.98980 |
(hE - excess enthalpy, x - liquid mole fraction)
Reference
| Source |
| Conti G.; Gianni P.; Matteoli E.: Excess enthalpies and excess heat capacities of the ternary system ethanol + tetrahydrofuran + cyclohexane at 298.15 K. Thermochim.Acta 247 (1994) 293-313 |
Diagrams
List of All References
| Source |
| Conti G.; Gianni P.; Matteoli E.: Excess enthalpies and excess heat capacities of the ternary system ethanol + tetrahydrofuran + cyclohexane at 298.15 K. Thermochim.Acta 247 (1994) 293-313 |
| Merkel K.: Übermolekülbildung in Flüssigkeiten. Nova Acta Leopoldina 9 (1940) 243-303 |
| Chao J.P.; Dai M.: Excess enthalpies of (an alkan-1-ol + tetrahydrofuran or cyclohexanone) at 298.15 K. J.Chem.Thermodyn. 21 (1989) 977-983 |
Excess Enthalpy Data Overview
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