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 C2H6O2 62.068 107-21-1 1,2-Ethanediol
2 C2H6O 46.069 64-17-5 Ethanol
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Ethanol solved in 1,2-Ethanediol

Temperature [K] Activity Coeff. at Inf. Dil. Measurement Method Source
293.15 2.2600 GLCI 3
298.15 1.8600 STAT 1
373.15 1.7600 GLCI 2

List of measurement methods

Short Term Explanation
GLCI GLC (without gas phase correction)
STAT static method

List of References

1 Park J.H.; Hussam A.; Couasnon P.; Fritz D.; Carr P.W.: Experimental Reexamination of Selected Partition Coefficients from Rohrschneider´s Data Set. Anal.Chem. 59 (1987) 1970-1976
2 Rafflenbeul L.; Hartmann H.: Eine Methode zur Auswahl von Lösungsmitteln für die Extraktiv-Destillation. Forschungsber.Landes NRW (1979) 1-20
3 Endler I.: Untersuchungen zur Bestimmung der Grenzaktivitätskoeffizienten von Ethandiol- und 2,2-Oxy-Diethanol (Diethylenglycol)-Systemen. Thesis (1983)


Activity Coefficients at Infinite Dilution of 1,2-Ethanediol+Ethanol
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Activity Coefficient at Infinite Dilution Data Overview