Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1021/es050527h
Title (Primary) Prediction of the temperature dependency of Henry's law constant from chemical structure
Author Kühne, R. ORCID logo ; Ebert, R.-U.; Schüürmann, G.
Source Titel Environmental Science & Technology
Year 2005
Department OEC
Volume 39
Issue 17
Page From 6705
Page To 6711
Language englisch
Abstract A new model to estimate the temperature dependency of Henry's law constant in water for organic compounds from the two-dimensional structure is presented. Air/water partition enthalpies of 456 chemicals were fitted to 46 substructural parameters with a squared correlation coefficient r2 of 0.81 and a standard error of 7.1 kJ/mol. The compound set covers various organic compound classes with the atom types C, H, N, O, F, Cl, Br, I, and S. Application of the model together with experimental data for 25 °C to a set of 462 compounds with 2119 experimental Henry's law constants at temperatures below 20 °C yields a predictive squared correlation coefficient q2 of 0.99 and a standard error of 0.21 logarithmic units. The prediction capability is further evaluated using cross validation and permutation.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=3551
Kühne, R., Ebert, R.-U., Schüürmann, G. (2005):
Prediction of the temperature dependency of Henry's law constant from chemical structure
Environ. Sci. Technol. 39 (17), 6705 - 6711 10.1021/es050527h