Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information

Biodegradation effect :

In water and sediment : Based on the Level III Fugacity Model, the half life period of difluoroacetic acid was estimated. The half life period of difluoroacetic acid in water is 8.7 days, therefore it is considered that the substance will qualiy as not persistent as the half life does not exceed the threshold of 60 days. So, it can be confirmed that the substance is readily biodegradable in water medium whereas in sediment the half life is 78 days and based on this value it can be inferred that the substance is persistent in sediment medium and is not readily biodegradable probably due to the anaerobic conditions existing in most sediment. However, it can be observed that difluoroacetic acid does not diffuse in the sediment medium since it's percentage in the sediment medium is reported to be 0% and hence persistence in the sediment compartment is not likely to be critical.

In soil : The PBT Profiler has estimated that difluoroacetic acid is expected to to be found predominantly in soil and its persistence estimate is based on its availablility in this medium. Its half life in soil is found to be 17 days (408 hours ) which does not exceed the EPI criteria of >= 2months and (<= 6 months ). Therefore, difluoroacetic acid is estimated to be non persistent in the soil environment.