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 C4H10O 74.123 71-36-3 1-Butanol
2 C5H9NO 99.133 872-50-4 N-Methyl-2-pyrrolidone
Search the DDB for all data of this mixture

Data Table

Azeotropic Type T [K] P [kPa] yaz,1 [mol/mol] yaz,2 [mol/mol] Measurement Method Evaluation Source
none n.a. 10.000 n.a. n.a. Phase equilibrium Author 1
none n.a. 25.000 n.a. n.a. Phase equilibrium Author 1
none n.a. 50.000 n.a. n.a. Phase equilibrium Author 1

(yaz - vapor and liquid mole fraction)

List of Azeotrope Types

none zeotropic

List of References

1 Hirawan R.; Sinha S.; Iwarere S.A.; Raal J.D.; Naidoo P.; Ramjugernath D.: Vapor–Liquid Equilibrium Data for 1-Methyl-2-Pyrrolidone + (1-Butanol or 1-Hexene or Water) Binary Mixtures. J.Chem.Eng.Data 59 (2014) 1643-1650

Azeotropic Data Overview