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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Physical & Chemical properties

Dissociation constant

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Administrative data

Link to relevant study record(s)

Description of key information

The pKa values could not be determined experimentally. The dissociation constant of the substance was therefore calculated from its structural formula using the Perrin calculation method: pKa (acidic)= 16.3; pKa (basic)= none.

Key value for chemical safety assessment

pKa at 20°C:

Additional information

The titration method (low water solubility) or the spectrophotometric method (no absorbance maxima recorded for the substance at pH 1 or pH 13) were not applicable to the substance.

The study was performed in accordance with OECD 112 and EPA OPPTS 830.7370 guidelines and according to the principles of GLP.