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Physical & Chemical properties

Dissociation constant

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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.