Dortmund Data Bank

Activity Coefficients at Infinite Dilution

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 C4H8O 72.107 109-99-9 Tetrahydrofuran
2 C5H9NO 99.133 872-50-4 N-Methyl-2-pyrrolidone
Search the DDB for all data of this mixture

Tetrahydrofuran solved in N-Methyl-2-pyrrolidone

Temperature [K] Activity Coeff. at Inf. Dil. Measurement Method Source
303.25 1.3000 DILU 1
313.35 1.3500 DILU 1
323.35 1.3500 DILU 1

List of measurement methods

Short Term Explanation
DILU dilutor

List of References

1 Krummen M.; Gmehling J.: Measurement of Activity Coefficients at Infinite Dilution in n-Methyl-2-Pyrrolidone and n-Formylmorpholine and their Mixtures with Water Using the Dilutor Technique. Fluid Phase Equilib. 215 (2004) 283-294


Activity Coefficients at Infinite Dilution of Tetrahydrofuran+N-Methyl-2-pyrrolidone
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Activity Coefficient at Infinite Dilution Data Overview