Dortmund Data Bank

Azeotropic 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.


No. Formula Molar Mass CAS Registry Number Name
1 C2H6O 46.069 64-17-5 Ethanol
2 C6H14 86.177 110-54-3 Hexane
3 H2O 18.015 7732-18-5 Water
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Data Table

Azeotropic Type T [K] P [kPa] yaz,1 [mol/mol] yaz,2 [mol/mol] yaz,3 [mol/mol] Measurement Method Evaluation Source
hetPmax 329.150 101.325 0.16826 0.62208 n.a. Distillation Author 3
hetPmax 329.190 101.325 0.21500 0.64100 n.a. Distillation Author 1
hetPmax 329.750 101.325 n.a. n.a. n.a. Distillation Author 2

(yaz - vapor and liquid mole fraction)

List of Azeotrope Types

hetPmax heterogeneous pressure maximum

List of References

1 Kudryavtseva L.S.; Toome M.Yu.; Susarev M.P.: XI. Calculation of the Compositions of Ternary Hydrocarbon (Halogenohydrocarbon) - Water - Ethyl (Butyl) Alcohol Ternary Azeotropes. Viniti (1973) 1-7
2 Durrans T.H.: A Treatise on Distillation. Perfum.Essent.Oil Rec. 11 (1920) 154-198
3 Fritzweiler R.; Dietrich K.R.: Der Azeotropismus und seine Anwendung für ein neues Verfahren zur Entwässerung des Äthylalkohols. Beih.Zeitschr.Ver.Deutsch.Chem. 1 (1933) 1-11

Azeotropic Data Overview