Registration Dossier
Registration Dossier
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EC number: 204-468-9 | CAS number: 121-43-7
Bioaccumulation: aquatic / sediment
Administrative data
Link to relevant study record(s)
Description of key information
In accordance with REACH Annex XI, the study is not technically feasible because the test substance rapidly hydrolyzes in water with a half-life less than 1 second (0.02 minutes) to form methanol and boric acid. The log Kow of methanol is less than 3, indicating that the product has a low potential for bioaccumulation. Boric acid has a low potential for bioaccumulation due to its high water solubility (49 g/L) and low log Kow (-1.09).
Key value for chemical safety assessment
Additional information
A bioaccumulation study for trimethyl borate can be waived since the compound rapidly hydrolyzes in water with a half-life less than 1 second (0.02 minutes) to form methanol and boric acid. The log Kow of methanol is less than 3, indicating that the product has a low potential for bioaccumulation. Boric acid has a low potential for bioaccumulation due to its high water solubility (49 g/L) and low log Kow (-1.09).
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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