Registration Dossier
Registration Dossier
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EC number: 253-930-6 | CAS number: 38436-16-7
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
Log Kow [[2-(perfluorobutyl)ethyl]dichloro(methyl)silane]: Not relevant
Log Kow [[2-(perfluorobutyl)ethyl]methylsilanediol]: 3.3 at 20°C (QSAR)
Key value for chemical safety assessment
Additional information
The requirement to conduct an n-octanol/water partition coefficient study for the submission substance is waived in accordance with Section 2 of REACH Annex XI because under dilute conditions in water, the substance hydrolyses very rapidly to form [2-(perfluorobutyl)ethyl](methyl)silanediol and hydrochloric acid.
The log Kow of the silanol hydrolysis product, [2-(perfluorobutyl)ethyl]methylsilanediol has been estimated to be 3.3 at 20°C using a validated QSAR estimation method. Log Kow is not relevant for the other non-silanol hydrolysis product (hydrochloric acid), being an inorganic substance.
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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