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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Phototransformation in air

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Administrative data

Link to relevant study record(s)

Description of key information

Difluoroacetic acid has got an estimated  half life of 30 days  and hydroxyl radical reaction rate constant as 0.000000000001 cm3/molecule-sec at 25 degrees C.

Key value for chemical safety assessment

Half-life in air:
30 d
Degradation rate constant with OH radicals:
0 cm³ molecule-1 s-1

Additional information

The atmospheric oxidation half-life of difluoroacetic acid was estimated using the level III multimedia model. Difluoroacetic acid has got an estimated half life of 30 days and hydroxyl radical reaction rate constant as 0.000000000001cm3/molecule-sec at 25 degree C. Hence, it can be inferred that difluoroacetic acid is persistent in air medium.