Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Tetrafluoroboric acid has a pKa value of -4.9.

Key value for chemical safety assessment

pKa at 20°C:
-4.9

Additional information

No data on the temperature at which measurement/estimation took place is available but it can be assumed that the variability of measurement results is higher than the temperature dependence to be expected.