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
Hydrolysis:
As reported in SIDS, the main isomer 2,4-dichlorotoluene was found to be hydrolytically stable at pH 4, 7, and 9 in an OECD 111 test performed by MITI (Reference: MITI, 1993). In this dossier, the DT50 of this isomer is therefore indicated to be >1 year. This DT50 is also applicable to the DCT mixture.
Photo transformation in water:
For 2,4-dichlorotoluene, a half-life of 90.7 years was calculated according to Lyman et al. (1981) (Reference: SIDS / Lyman, 1995). Reliability: 4
Photo transformation in air:
The following half lives were calculated (Reference: Lanxess, 2009):
- 12.2 days for 2,3- and 2,6-dichlorotoluene
- 13.6 days for 2,5-, 2,3- and 3,4-dichlorotoluene.
For the DCT mixture, the longer half life of 13.6 days is applied as worst-case value.
Photo transformation in soil: no data available
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