Registration Dossier
Registration Dossier
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 203-197-3 | CAS number: 104-38-1
Biodegradation in water and sediment: simulation tests
Administrative data
Link to relevant study record(s)
Description of key information
Reliable measured data for simulation testing on ultimate degradation in surface water or sediment is not available. However, a waiver is being applied for simulation testing on ultimate degradation in surface water and ultimate degradation in sediment.
Key value for chemical safety assessment
Additional information
In accordance with Column 2 of REACH Annex IX, further biotic degradation testing does not need to be proposed if the chemical safety assessment does indicates there is no need to investigate further the degradation of the substance and its degradation products. It is proposed that testing is waived as exposure potential is negligible as the substance is an intermediate product. The test substance is a monomer where the solid product is blended with non-aqueous substances. Once polymerised the substance is chemically bound into the polymer matrix of the article therefore there is no downstream exposure. There is negligible exposure to aqueous process streams during downstream use and hence also negligible emission to a sewage treatment plant. Therefore, exposure to aquatic or sediment organisms is negligible.
In accordance with Column 2 of REACH Annex IX, the simulation test sediment (required in 9.2.1.4) does not need to be conducted as direct or indirect exposure of sediment isnegligible. Exposure potential is expected to be negligible as the substance is an intermediate product. There is negligible exposure to aqueous process streams during downstream use and hence also negligible emission to a sewage treatment plant. Also, the substance has a very low log octanol-water partition coefficient (Log Kow) of 0.41 at a neutral pH indicating low adsorptive potential. Therefore, no testing is necessary based onnegligible exposure. Identification of degradation products (required in Section 9.2.3) is also not necessary.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
