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EC number: 215-553-5 | CAS number: 1330-86-5
Hydrolysis
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 (9.2.2.1) 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).
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