Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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: 212-741-9 | CAS number: 865-48-5
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Sodium2-methylpropan-2-olate hydrolsyses in water to form inorganic sodium hydroxide and tert-butanol. Whereas inorganic substances can not biodegrade, tert-butanol was biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable but failing 10-day window
Additional information
Sodium 2-methylpropan-2-olate hydrolsyses in water to form inorganic sodium hydroxide and tert-butanol. The biodegradability of tert-butanol was studied in a CO2 -headspace test conducted according to ISO guideline 14593. After 28 days of exposure a biodegradation of 70 - 80 % were observed. However, tert-butanol is not considered to be readily biodegradable, since the required 10 -day window was not met. Therefore the test substance is regarded as biodegradable but not as readily biodegradable according to OECD criteria.
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.
