Registration Dossier
Registration Dossier
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EC number: 202-051-6 | CAS number: 91-22-5
Dissociation constant
Administrative data
Link to relevant study record(s)
Description of key information
Several values were found, obtained with different methods. The value retained is 4.94.
Key value for chemical safety assessment
- pKa at 20°C:
- 4.94
Additional information
Several different values for the pKa have been found: 4 determined at 25°C, (between 4.882 and 5.0) and 3 at 20°C (between 4.78 and 4.957).
The retained value is 4.94, in the middle of the range of the values determined at 20°C.
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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