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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

In contact with water the substance will hydrolyse slowly (EPIWIN calculation).

Key value for chemical safety assessment

Half-life for hydrolysis:
2.4 yr
at the temperature of:
25 °C

Additional information

In accordance with column 2 of REACH Annex VIII, the test on hydrolysis (required in section 9.2.2) was waived, as the substance is readily biodegradable.

Hydrolysis of allyl methacrylate is not expected under relevant environmental conditions. The substance is expected to be stable at neutral and acidic conditions. Hydrolysis is expected under alkaline conditions. A half life of >2.4 yr was calculated for allyl methacrylate at a pH of 8 and 25 °C (SRC HYDROWIN v2.00).