Registration Dossier
Registration Dossier
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EC number: 701-385-4 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Additional information
Abiotic degradation:
The constituents of the substance don't have functional groups subject to hydrolysis. Therefore, hydolysis is not expected.
Biodegradation:
The constituents of the UVCB substance are adsorptive and poorly water soluble. The UVCB substance is not readily biodegradable. In a surface water simulation degradation test according to OECD 309 the mineralisation of the uvcb substance was <1% after 60 days at 12°C. Comparable degradation potential is expected for biodegradation in sediment and soil.
Bioaccumulation:
The high log Pow of this substance indicates a potential for bioaccumulation. However, for various reasons bioaccumulation in aquatic organisms is unlikely:
- the physico chemical properties imply that water is not a target compartment (low water solubility and high adsorption potential)
- In a weight of evidence approach using QSAR and experimental data, the BCF of the UVCB substance is < 2000.
- In accordance with the Guidance of Information requirements and chemical safety assessment Chapter R11 PBT Assessment, these criteria are indicators for reduced bioaccumulation potential and the UVCB substance is not regarded as B or vB.
Transport and distribution:
The adsorption/desorption partition coefficient of >3 indicates immobility in soil and adsorption to suspended particles for the components of the UVCB substance. Thus, the UVCB substance will mainly distribute to soil and sediment.
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