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 C6H14 86.177 110-54-3 Hexane
2 C4H8O2S 120.172 126-33-0 Sulfolane
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Data Table

Azeotropic Type T [K] P [kPa] yaz,1 [mol/mol] yaz,2 [mol/mol] Measurement Method Evaluation Source
Pmax n.a. 79.993 n.a. n.a. Phase equilibrium Author 1
Pmax n.a. 93.326 n.a. n.a. Phase equilibrium Author 1
Pmax n.a. 99.992 n.a. n.a. Phase equilibrium Author (CR) 1

Note CR: Contradictory results for this system from several sources

(yaz - vapor and liquid mole fraction)

List of Azeotrope Types

Pmax pressure maximum

List of References

1 Mukhopadhyay M.; Pathak A.S.: Infinite-Dilution Activity Coefficients from Ebulliometric Isobaric Bubble Point-Composition Data of Hydrocarbon-Sulfolane Systems. J.Chem.Eng.Data 31 (1986) 148-152

Azeotropic Data Overview