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EC number: 221-906-4
CAS number: 3277-26-7
The chemical safety assessment according to REACH Annex I indicates that
it is not necessary to conduct the simulation test on ultimate
degradation in surface water and the sediment simulation test, or to
identify degradation products.
Simulation tests (water and sediments) are not considered necessary
- The substance is used under highly controlled conditions and,
therefore, exposure of the aquatic environment is low (see Section 9 for
- The substance and its intermediate hydrolysis products are unstable.
The registered substance will hydrolyse rapidly in contact with water.
The intermediate hydrolysis product is dimethylsilanol and the ultimate
hydrolysis product is dimethylsilanediol. The risk characterisation
ratios (RCRs) for the aquatic and sediment compartment, even with the
conservative assumption that the silanol hydrolysis product is not
biodegradable, are <1
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.
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