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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Environmental fate & pathways


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Administrative data

Link to relevant study record(s)

Description of key information

Hydrolysis is not a relevant pathway due the ready biodegradability of the members of the PFAE linear category.

Key value for chemical safety assessment

Additional information

In accordance with Annex VIII, column 2 ( of Regulation (EC) No. 1907/2006, the testing for hydrolysis as a function of pH is not required as all members of the PFAE linear category are readily biodegradable. In addition, QSAR calculations (HYDROWIN v2.00) also indicate, that hydrolysis represents a negligible pathway for the environmental fate of the members of the PFAE linear in the environment (DT50 [pH 7] > 1 yr). Furthermore, a valid experimental study with Diputyl adipate (CAS 105-99-7) supports the QSAR predictions by reporting a very long half time of 1850 days at pH 7 at 25 °C (OECD 111, METI, 1995). This assumption of lack of relevance of abiotic degradation is in line with the assessment of substances as defined by the US-EPA "Aliphatic Diester Category" (US-EPA, 2010).