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 C6H6 78.114 71-43-2 Benzene
3 C6H12 84.161 110-82-7 Cyclohexane
4 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] yaz,4 [mol/mol] Measurement Method Evaluation Source
hetPmax n.a. 101.325 0.25082 0.15716 0.38830 n.a. n.a. Author 3
hetPmax n.a. 101.325 0.25446 0.15780 0.38989 n.a. n.a. Author 2
hetPmax 335.340 101.325 0.22367 0.16299 0.37999 n.a. Distillation Author 1

(yaz - vapor and liquid mole fraction)

List of Azeotrope Types

hetPmax heterogeneous pressure maximum

List of References

1 Zieborak K.: On the Quaternary Azeotropes Formed by Paraffinic and Naphthenic Hydrocarbons with Benzene, Ethanol and Water. Rocz.Chem. 25 (1951) 388-391
2 Swietoslawski W.; Galska A.: A Method for Determining the Composition of Quaternary Heteroazeotrope. Bull.Acad.Pol.Sci.Cl.3 2 (1954) 497-500
3 Zieborak K.; Galska A.: A Method for Determining the Composition of Quaternary Azeotropes and the Position of Heteroazeotropic Lines. Bull.Acad.Pol.Sci.Cl.3 3 (1955) 383-387

Azeotropic Data Overview