Registration Dossier
Registration Dossier
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EC number: 249-854-8 | CAS number: 29797-40-8
Endpoint summary
Administrative data
Description of key information
Additional information
Adsorption/desorption on soil or sediment:
A log Koc of 3.36 was determined for DCT mixture according to OECD 121 (Reference: Neuland, 2010), indicating that DCT mixture is slightly mobile in soil.
Henry´s Law Constant:
The Henry´s Law Constant was calculated with EUSES on the basis of experimental values for the water solubility and vapour pressure of the dichloromethylbenzene mixture to be 876 Pa m3/mol at 25°C and 420 Pa m3/mol at 12 °C.
Volatilisation from water:
The following half-lives for volatilisation from water were calculated:
- 1.5 hours (model river) and 5.1 days (model lake) for 2,4 -, 2,5 - , 2,3 - and 2,6-DCT with EPIWIN v.3.2 (by Group SAR method on the basis of the Henry’s Law constant)
- 1.6 hours (model river) and 5.2 days (model lake) for 3,4-DCT from the Henry´s experimental database
(Reference: Lanxess, 2009, Reliability not assignable)
Octanol-air partitioning coefficient:
The following log octanol-air partition coefficients (logKoa) were calculated with KOAWIN v.1.10 for 25°C:
- 2,4-dichlorotoluene: 5.115
- 2,5-dichlorotoluene: 4.845
- 2,3-dichlorotoluene: 4.835
- 3,4-dichlorotoluene: 4.929
- 2,6-dichlorotoluene: 4.865
(Reference: Lanxess, 2009, Reliability not assignable)
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