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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 218-145-5 | CAS number: 2052-25-7
Hydrolysis
Administrative data
Link to relevant study record(s)
Description of key information
pH 4 t1/2 > 1 year
pH 7 t1/2 = 316 days
pH 9 t1/2 = 155 days
Key value for chemical safety assessment
- Half-life for hydrolysis:
- 316 d
- at the temperature of:
- 25 °C
Additional information
At pH 4 less than 10 % of the reaction is observed after 5 days at 50 °C (t½> 1 year at 25 °C). Thus the test substance may be considered hydrolytically stable at a pH of 4 and according to the European Commission Regulation (EC) No. 440/2008 no additional testing is required.
At pH 7 the half-life period was determined by extrapolation of the results of the experiments at 50 °C, 60 °C and 70 °C to a temperature of 25 °C. It was found to be 316 days.
At pH 9 the half-life period was determined by extrapolation of the results of the experiments at 50 °C, 60 °C and 70 °C to a temperature of 25 °C. It was found to be 155 days.
No major hydrolysis products (≥10 % of the applied dose) were identified in the HPLC chromatograms of tier 2. Therefore Tier 3 is not necessary.
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.
