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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 203-868-0 | CAS number: 111-42-2
Dissociation constant
Administrative data
Link to relevant study record(s)
Description of key information
8.99 at 25 °C
Key value for chemical safety assessment
Additional information
Taking into account a pKa value of about 9 at 20 °C, the molecule will predominantly occur in the charged (cationic) form at environmentally relevant conditions of pH 6 – 8 (90 – 100 % ionization). At pH 9 the molecule will be present to each 50 % as cationic and uncharged species. At pH values > 9, DEA will predominantly be present as uncharged species.
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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