Registration Dossier
Registration Dossier
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EC number: 201-964-7 | CAS number: 90-05-1
Endpoint summary
Administrative data
Description of key information
Additional information
Adsorption/desorption
Boyd (1982) has been selected as key study and reported a measured Koc of 40 ina clay loam soil. Poole and Poole(1999) calculated a Koc of 36.3, which is consistent with the experimental one. Based on these results, guaiacol is not expected to have a high adsorptive behaviour.
Volatilisation
Volatilisation either from soil or water is not expected to be an important process for guaiacol because of relatively low vapour pressure (14Pa at 25°C), relatively high water solubility (18.5 g/l) and an experimental Henry's law constant of 0.11Pa.m3/mole at25°C.
Distribution modelling
Necessary data to run MacKay were available (Molar mass = 124.14 g/mol; Water solubility =18500g/m3; Vapour pressure = 14 Pa; Log Kow =1.47; Melting point =28°C). According to MacKay level I version3.00, Guaiacol has the following distribution:
-Water: 96.35%
- Air: 1.83%
- Soil: 1.78%
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