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 683

Components

No. Formula Molar Mass CAS Registry Number Name
1 CH4O 32.042 67-56-1 Methanol
2 C2H6O 46.069 64-17-5 Ethanol
Search the DDB for all data of this mixture

Miscibility gap: No

Constant Value

Temperature 298.150 K

Data Table

hE [J/mol] x1 [mol/mol]
2.800 0.24120
4.500 0.47580
4.300 0.72860

(hE - excess enthalpy, x - liquid mole fraction)

Reference

Source
Chand A.; Fenby D.V.: Enthalpy of deuterium exchange reactions in water + ethanol and methanol + ethanol. J.Chem.Thermodyn. 10 (1978) 997-1001


Enthalpy of Mixing Data Set 684

Components

No. Formula Molar Mass CAS Registry Number Name
1 CH4O 32.042 67-56-1 Methanol
2 C2H6O 46.069 64-17-5 Ethanol
Search the DDB for all data of this mixture

Miscibility gap: No

Constant Value

Temperature 298.150 K

Data Table

hE [J/mol] x1 [mol/mol]
2.512 0.44210
7.536 0.61100
8.792 0.70820

(hE - excess enthalpy, x - liquid mole fraction)

Reference

Source
Hirobe H.: Thermochemical Studies. J.Fac.Sci.Univ.Tokyo Sec.1 1 (1926) 155-222


Enthalpy of Mixing Data Set 685

Components

No. Formula Molar Mass CAS Registry Number Name
1 CH4O 32.042 67-56-1 Methanol
2 C2H6O 46.069 64-17-5 Ethanol
Search the DDB for all data of this mixture

Miscibility gap: No

Constant Value

Temperature 298.150 K

Data Table

hE [J/mol] x1 [mol/mol]
0.900 0.07340
1.700 0.14600
2.500 0.23480
3.200 0.31670
3.900 0.39740
4.400 0.47120
4.600 0.53940
4.700 0.60020
4.600 0.65190
4.400 0.69650
3.500 0.79980
2.700 0.85350
1.900 0.90490
1.200 0.94650
0.600 0.97560

(hE - excess enthalpy, x - liquid mole fraction)

Reference

Source
Pflug H.D.; Pope A.E.; Benson G.C.: Heats of Mixing of Normal Alcohols at 25 °C. J.Chem.Eng.Data 13 (1968) 408-410

Diagrams

Excess Enthalpies of Ethanol+Methanol
See larger image

List of All References

Source
Hirobe H.: Thermochemical Studies. J.Fac.Sci.Univ.Tokyo Sec.1 1 (1926) 155-222
Pflug H.D.; Pope A.E.; Benson G.C.: Heats of Mixing of Normal Alcohols at 25 °C. J.Chem.Eng.Data 13 (1968) 408-410
Chand A.; Fenby D.V.: Enthalpy of deuterium exchange reactions in water + ethanol and methanol + ethanol. J.Chem.Thermodyn. 10 (1978) 997-1001

Excess Enthalpy Data Overview


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