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: 242-056-0 | CAS number: 18171-19-2
Endpoint summary
Administrative data
Description of key information
Abiotic degradation:
3-Chloropropyl(dimethoxy)methylsilane hydrolyses rapidly (0.1 h at pH 4, 1.3 h at pH 7 and 0.03 h at pH 9 and 20-25°C) under relevant environmental conditions to form 3-chloropropyl(methyl)silanediol and methanol. Reactions with water vapour rather than photolysis is likely to be the primary degradation process in air.
Biotic degradation:
A biodegradation in water study has been read across from a relevant analogous substance. The result indicates that no significant biodegradation in water of the hydrolysis product, 3-chloropropyl(methyl)silanediol, is expected. The chemical safety assessment indicates that it is not necessary to obtain further information on biodegradation via simulation tests in water, sediment or soil.
Additional information
Table: Degradation rates
Degradation rate in water: | Hydrolysis half-life: 1.3 hours at pH 7 and 20-25°C, for removal of parent (predicted). No significant biodegradation of silanol hydrolysis product expected. |
Degradation rate in sediment: | No significant biodegradation of silanol hydrolysis product expected. |
Degradation rate in soil: | No significant biodegradation of silanol hydrolysis product expected. |
Degradation rate in air: | Half-life for reaction with hydroxyl radicals in air: 4.1 days for parent; 1.8 days for silanol hydrolysis product (predicted). |
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.
