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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Biodegradation in water: screening tests

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Description of key information

Propylene oxide was found ready biodegradable (89% after 28 days) under aerobic conditions in a modified MITI test (MITI 1988).

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

Propylene oxide was found ready biodegradable (89% after 28 days) under aerobic conditions in a modified MITI test (MITI 1988). Propylene oxide is not readily biodegradable under the stringent conditions of a closed bottle biodegradation test ( Shell Research Ltd., 1985). The available studies indicate that in general propylene oxide can assumed to be ready biodegradable, but under certain stringent conditions this may not be the case.