Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information

In the environment, crotonaldehyde is mainly distributed within the soil and water phase. A biodegradation takes place in the water phase, however, the criterion for a classification as ready biodegradable is not fulfilled. Under acidic conditions, it is reversibly hydrated to aldol. A photolytical degradation in the water phase under normal environmental conditions can practically be excluded, as a slight degradation was only observed when illuminated with UV light.

Due to its low Koc value, the potential for adsorption to the soil and sediment phase is low. The low log Pow indicates a low potential for bioaccumulation. Based on the vapour pressure and the resulting Henry's Law constant, a potential for reaching the air via the water phase is given. Here, a direct photolysis of crotonaldehyde takes also place only in the range of the UV spectra.