Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Phototransformation in water

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Imidazole might undergo photolysis in water rapidly or slowly depending on OH concentrations and light intensity.

Key value for chemical safety assessment

Additional information

According to the results of the non-guideline study of Haag and Hoigné (1986) half-lives for photolysis in water between 4.4 hours and 307 days have are assumed depending on OH concentrations and light intensity.