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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Description of key information

The 18-h EC50 of 550 mg/L for Pseudomonas putida is used in the assessment. 

Key value for chemical safety assessment

EC50 for microorganisms:
550 mg/L

Additional information

A GLP compliant growth inhibition study (Safepharm Laboratories Ltd., 1992) is available for potassium tetrafluoroborate. Pseudomonas putida was exposed to eleven test concentrations of potassium tetrafluoroborate (1.8 to 3,500 mg/L) for a period of 18 ± 2 hours under static conditions. Three replicates were considered at each of the test concentrations, for the control ten replicates were used. The growth inhibition was measured as turbidity. The 18-h EC50 value was 550 mg/L (based on nominal concentrations).