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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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


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Administrative data

Link to relevant study record(s)

Description of key information

A study on hydrolysis does not need to be conducted.

Key value for chemical safety assessment

Additional information

In accordance with column 2 of REACH Annex VIII, the hydrolysis test does not have to be conducted because AAPB is readily biodegradable. It is shown that biodegradation is the primary route of degradation in the environment.

In addition limited information is available from an EPIWIN calculation. However, there are no details whether the calculation model is validated for the substance under investigation, therefore reliability is not assignable. The stability (hydrolysis) of C8 -18 AAPB was calculated using EPIWIN, HYDROWIN v1.67. Hydrolysis is not to be expected under environmental conditions: the calculated hydrolysis half-life time (t1/2) was found to be > 1 year.