Registration Dossier
Registration Dossier
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EC number: 939-424-4 | CAS number: 1469983-44-5
Biodegradation in soil
Administrative data
Link to relevant study record(s)
Description of key information
For the estimation of exposure, the half-life in soil is taken to be below 120 d as a worst case.
Key value for chemical safety assessment
- Half-life in soil:
- 120 d
- at the temperature of:
- 20 °C
Additional information
The test substance in readily biodegradable and thus a biodegradation study in soil is waived.
Due to its high lipophility, in the environmental model the major part of the material will be sorbed to activated sludge and other organic matter and in the model, only the dissolved part is available for degradation. This does not reflect the process in reality where also adsorbed material is degraded. According to Guidance R.16 (5.4.5) the default value for this predominantly hydrophobic substance (log Kow 6.5) would lead to Kp(soil) 4640 and give a half-life in soil of 3000 days. As this is not realistic for a readily degradable substance, for the sake of this modelling the half-life is conservatively set to 120 days. 120 days is the threshold value for the half-life in soil - Persistency criterion.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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